All Perennial Reports

2022 Perennial Report

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Letter from the President and CEO

Dear Friends and Supporters,

For The Morton Arboretum, 2022 celebrated a century of planting and protecting trees for a greener, healthier, and more beautiful world. Through time the Arboretum has grown from Joy Morton’s vision into one of the world’s most impactful public gardens, known for its scientifically important collection of trees, relevant nature education programs, influential tree research, world-spanning conservation partnerships to safeguard trees, and its beautiful landscapes.

In its centennial year, the Arboretum opened The Gerard T. Donnelly Grand Garden, a spectacular new space to celebrate and experience the joy of plants. Thousands of trees were added to Chicago-area communities through the Centennial Tree Planting Initiative, and learners of all ages enjoyed more than one hundred centennial-related programs. These and many more impacts were made possible through your generous support as donors, members, guests, community partners, volunteers, and staff—the strong roots on which the Arboretum grows and flourishes.

The Morton Arboretum enters its second century with a strong sense of purpose and continuing commitment to benefit trees and people while partnering with communities and public gardens for a resilient future. Thank you for your continued partnership and support.

With gratitude,

Board of Trustees

Trustees, elected to their roles, are responsible for overall governance of the institution and advancement of its mission.

As of December 31, 2022


Stephen C. Van Arsdell


Robert J. Schillerstrom

Vice Chair

Charles P. McQuaid


Mark C. Gossett


Anna Caroline Ball

Robert A. Bartlett, Jr.

Pat A. Basu

Walter W. Becky II

Barbara J. Bradford

Christopher B. Burke

Mary L. Burke

Michael E. Cahill

Trisha L. Conley

E. James Dondlinger

Robert L. Fealy

Asheesh Goel

Troy D. Hammond

Matt Harris

Andrew O. Johnson

Robert E. Kress

Jamal J. Scott

Life Trustees

Elisabeth G. Bacon

Stephen W. Baird

Natalie Culley

James F. Dickerson

Ann Grube

Darrell B. Jackson

Henry B. Pearsall


President and CEO

Jill Koski
The Morton Arboretum

Board of Advisors

The Board of Advisors advises The Morton Arboretum leadership on key topics.

As of December 31, 2022

Jim Parsons


Mark Adams

George Berry IV

Sue Buchanan

Fernando S. Ereneta

Lynne Friedlander

Tom Gleitsman

Ted Haffner

Tim Hermann

Darius Horton

Scott Jamieson

Mitchell Jones

Karen Kurek

Matthew B. Mouw

Peter Paolilli

Willson Rasavongxay

Lee Selander

James B. Smith

Nancy Hamill Winter

Kathleen C. Yosko



Evergreen Gala Host Committee

The Evergreen Gala Host Committee advises The Morton Arboretum leadership on the major annual fundraising event.

As of December 31, 2022

Chris Bobowski and Tom Tyler

Pam Donnelly

Lee Ann and Mark* Gossett

Liz and Steve* Van Arsdell

Kristyn and Michael Van Eekeren


* Indicates Trustee

Individual Donors

As a nonprofit organization, The Morton Arboretum is grateful to all those who supported its mission through generous philanthropic contributions in 2022.

$100,000 and above

Anonymous (2)

Susan and Stephen* Baird Family Foundation

Anna Caroline Ball*

Robert F. Berry Charitable Trust

Ms. Margaret Madden

Mr. and Mrs. Charles* P. McQuaid

Sherry Reum

$50,000 to $99,999

Mr. and Mrs. Walter* W. Becky II

Mrs. Barbara Bradford* and Mr. Robert L. Sherman

Mr. and Mrs. Christopher* B. Burke

Mr. and Mrs. E. James* Dondlinger

Rose and Bob* Fealy

Asheesh Goel* and Shmaila Tahir

Ann* and John Grube

Kenneth and Susan Koranda

Karen L. Kurek

Ms. Janice E. Milano

Lee S. Selander

$25,000 to $49,999

Anonymous (3)

Mr. and Mrs. Robert* A. Bartlett, Jr.

Pat* and Kelly Basu

Susan and Ken^ Beard

Ms. Mary L. Burke*

The Christopher Family

Michael Cushing

Mary M. Forester

Lynne S. Friedlander and Jay C. Crawford

The William and Evelyn Fuchs Family Foundation

Susan Langosch and Eric Lee

Susan and Joseph Lunn

Michael^ and Margaret McCoy

J. David and Sally Field Mullan

Andrew L. and Jeanne Pagorek

Mrs. Ann Reiland

Al and June Rogers

Kathleen and Charles Sharp

Philip and Becky Tinkler

Mr. and Mrs. Stephen* C. Van Arsdell

$10,000 to $24,999

Duncan Alexander and Kit Keane

Anonymous (5)

Mr. and Mrs. Frank Bauer

Nancy Bernhardt

Mr. and Mrs. George A. Berry IV

Molly Boed

Nancy and Joe Bonita

James and Cynthia Bowhay

Richard and Jurate Bucha

The Buchanan Family Foundation

Kelley and Adam Burke

Michael* and Margaret Cahill

Mr. and Mrs. Kevin Cmunt

Mr. and Mrs.* John Conley

The Dick Family Foundation

Mr. and Mrs. Thomas E. Donnelley II

Mr. and Mrs. James F. Doyle

Mr. and Mrs. Tom Featherstone

Ms. Jean Follett and Mr. Douglas Thompson

Mr. David Fraser

John and Bernice Gardner

David and Maggie Gibson

Ms. Barbara Jean Gore

Mr. and Mrs. Mark* Gossett

Ted Haffner

Diann Hua

Elizabeth Hwang

Martin and Patricia Jahn

Mr. and Mrs. Andrew* O. Johnson

Julian Family Foundation

Connie and Dennis Keller

The Siblings of Robert Warren Kling Jr.

Posy Krehbiel

Bob* and Florence Kress

Mary Ann Mahoney

Christina Marciniak and Michael Brown

Gary Osgood

Jane and Henry* Pearsall

Linda Peterson

Neal and Jennifer Reenan

Brian^ and Barbara Renwick

Steve and Sheila Sarovich

Kathy and Kevin Schulte

Steve and Megan Shebik

Martin and Catherine Slark

TnT Family Foundation

Mr. and Mrs. Michael Van Eekeren

Jason Vollmer

Nancy Hamill Winter

Kathleen C. Yosko

Mary A. Zell

$5,000 to $9,999

Anonymous (2)

Fred and Kathleen Bauters

Martha Begalla and Luke McCormack

The Birck Family Fund

Mr. and Mrs. Michael J. Carbon

Sandra and David Christiansen

JoAnn Clay

Couch Family Foundation

Jamie and Pam Crouthamel

Dr. and Mrs. Gerard T. Donnelly

Mr. and Mrs. Jerry K. Fellows

Martha Garnett

Marion H. Giles

Darrell B. Jackson* and Valencia M. Ray, MD

Mr. and Mrs. Robert J. Jans

Jill Koski and David Ferguson

Heather Kumlin

Diane Lubarski

Mary Ellyn Madden

Tim^ and Patti Malloy

Mr. and Mrs. Ronald McKee

Paul and Renata McLean

Mr. John Meyer and Ms. Catherine Meyer

Drs. Anthony J. and Dietra D. Millard

Judy and Gary Montgomery

Jane E. Moore

Mr. and Mrs. Thomas Mulcahy

Frank and Jackie Murnane

Espie and Don Nelson

Mr. and Mrs. Paul Neustadt

Mrs. Linda Nolten

Suzy Peters

Willson and Sara Rasavongxay

Susan and Terrence Riordan

Mr. and Ms. Matthew Sawin

Tim Scale and Laural Briggs

Robert Schillerstrom* and Mary Beth O'Connor

Fred Schnitzius and Marilyn Kujawa

Marilyn Schweitzer and Michael Firman

Michael and Diane Webb

Amy and Morris Westerhold

Nathan Withington

Mr. Tony Zalewski and Ms. Joanna Myers

$2,500 to $4,999

Dennis and Kathy Abboud

Mark and Darcy Adams

The Allyn Foundation

Robert W. Ammann

Mary Anast

Midge^ and Dan Anderson

Stephen F. and Mary Ann Anderson

Anonymous (7)

Elisabeth* and John Bacon Jr.

William B. and Denise S. Baikie

Ms. Christine Banaszak

Chris Barkley

William and Sally^ Barnard

Karen and James Barnes

h & r bear

Gary and Ave Berkshire Sr.

Dr. and Mrs. John Bodine

Barbara Brooks

Buchanan Family

Janet Budney

Moira and Howard Buhse

Debra and Dan Burrows

Michelle Butler and Matthew Downes

Judy and Rod Carringer

Christine and Sophia Chandler

Rainbow Chou

Cynthia and Michael Collins

Dr. Maria Rosa Costanzo and the Honorable S. Louis Rathje

Peggy Cox and Mark Waszak

Ron and Joy Detmer

Angelo and Kim DiGangi

Bob DiMeo

Natalie and Christopher Dudley

Tom and Julie Earll

Mr. and Mrs. David Erickson

Ruth and James Fawley

Mr. and Mrs. James E. Fellowes

Susan Fincke

Fischer Family Charitable Fund

Mr. and Mrs. Ken Frantzen

Freedman-Sindelar Family Fund of DuPage Foundation

Janelle and Dave Furlin

Mr. and Mrs. Ryan Garber

Mr. Howard Goldstein and Ms. Margaret McGrath

Ms. Denise Graczyk and Mr. Michael Keenan

Mr. Mike Greenen and Mrs. Gina Greenen

The Matthew J. Grusecki Family Charitable Fund

Mr. and Mrs. Matt* Harris

Judy Helland

Tim and Debra Hermann

Darrell and Cheryl Holmes and Family

Mr. and Mrs. Darius Horton

Ms. Barbara Hunter and Mr. Cottrell Meadors

The Hyett Family

Mr. and Mrs. Robert Jackson

Scott and Diane Jamieson

Ken and Julie Janoski

Margaret and Charles Jonah

Dale and Davida Kalina

Melissa and Kenneth Kansa

Ms. Rita A. Kenning

Mr. and Mrs. David W. King

Linda Kraft

Elizabeth Krulac

Shawna Kurcz

Gary and Maureen Lichtenheld

Mr. and Mrs. Doug Lowrie

Rosemary and Scott MacDonald

Bernie and Janice Mack

Mr. and Mrs. Matt Maddox

Louis and Silvia Manetti

Leah Mayers

Mr. and Mrs. Bruce McLeod

Mr. and Mrs. Stephen Micatka

Matt and Rosemary Mongolis

Kim Morton and Ronald Kok-Alblas

Don Mrozek

Mr. and Mrs. Michael Myers

Teresa Nayar

Gayle Nordlof

Reilly and Emily O'Connor

Roger and Barbara Yaney Palmer

Peter Paolilli

The Richard Laurence Parish Foundation

James D. Parsons Gift Fund

Renee Patten

Andrew and Brittany Pitakos

Q & D Podraza

Bill Radon

Meghan Radziewicz

Jerome and Betty Rich

Pam and Alex A. Rose

Susanna and Paul Rose

Kevin Ryan

Ted and Dianne Saul

Melissa and Adam Schmitz

Ms. Susan Shih

Victoria M. Skala

Mr. and Mrs. William J. Smith II

Mr. and Mrs. Larry J. Solomon

Ms. Janice Sommer

Dr. Bob Stone and Pamela Nelson

Julie Sweeney

Mr. Michael Szafranski

Mr. and Mrs. John Tubutis

Tom Tyler and Chris Bobowski

Steven Tyriver and Gayle Gordon-Tyriver

Dr. Jacqueline A. Vernot and Dr. Raymond P. Kotz

Mr. and Mrs. Michael E. Vianzon

Mr. and Mrs. Greg Vichick

Mr. and Mrs. Charles Vihon

Paul Vogel

Gail and Darrell Voitik

Liz and Bill^ Werth

Philip C. Wiederhold

Katrina and Mark Willis

Mike and Chris Wilson

Scott and Lisa Wilson

Ann Worden

Mr. and Mrs. Edgar L. Yee

Gail and Arthur Zwemke

$1,500 to $2,499

Joan Ackerman and Julie Stromberg

Cushman and Pamela Andrews Family Fund of DuPage Foundation

Anonymous (9)

Wendy Antepenko

DeAnne and Richard Appleton

Mr. and Mrs. David Arch

Amanda and Jonathan Arnold

Michael Arnold and Monica Wallace

Mr. and Mrs. Ray Barnett

Peggy Bartel-Stanitz

Mr. and Mrs. Thomas Bastian

Preston Bautista and Bruce Nixon

Mrs. Janet Bean

Mr. and Mrs. David Beckman

David Beckwith

Ronald and Helen Bell

Alan and Valerie Belmonte

Marsha L. Beste

Bruce Blair and Megan Timmermann

Luke and Sara Blanshard

Phyllis Bleck

W. Brand and Mary Ann Bobosky

Alan and Jennifer Boyce

Ms. Margaret Braband

Michael and Linda Bresolin

Carol and John Bruns

Debra and Jeffrey Bruns

Ned and Pamela Bruns

Debi and Andy Butler

Christina Cahill and David Brookhart

Mr. and Mrs. John Callahan

Walter Camplin

Douglas and Suzanne Carty

Sarah Chaney

Charles and Norma Chelseth

Doris Cherry

Bill and Jill Chittenden

Mr. and Mrs. Dave Chua

Mr. and Mrs. J. Douglas Cleveland

William^ and Mary Sue Coates

Susan Coghlan

Michael and Karin Colucci

Erica Coppolino

Ms. Nancy Cox

Anne Crawford and Adam Wood

Natalie Culley*

Harry^ and Marianne Dennis

Mr. and Mrs. Luke Diana

Mr. and Mrs. James* F. Dickerson

Carole Dobbie and Lesa Bradford

Gerry and Pat Dobkowski

Mr. and Mrs. Jason R. Duck

Megan and Joseph Elberts

Mr. and Mrs. James Evans

Claudia F. Fabela

William J. and Mary Jo S. Fairbanks

Mary and Bruce Feay

Mr. and Mrs. David Findling

Anne and Mark Finn

Robert Fischetti and JoAnn Garcia

Mr. and Mrs. Andrew Fleming

Ms. Joni Flynn and Mr. Cliff Marcott

Ruta Freimanis

Mr. and Mrs. Joseph P. Gaffigan

Dr. and Mrs. Yogesh Gandhi

Zephyr Gault

Henry and Sandra Gentry

Robert Glavin and Linda Post

Mr. and Mrs. Mark Glenn

Rick and Alice Godfrey

Ms. Elizabeth P. Gordon

Dr. and Mrs. D. Allan Gray

Mr. and Mrs. James Grebner

Timothy Green and Octavia Powell

Pat and Carl Greer

Phillip and Roseann Griffin

Elaine J. Gross

Ms. Linda Grothendick

Mr. and Mrs. Allen Gustafson

Anita North Hamill

Mr. Daryl Hartman and Mr. Keith Watson

Mr. and Mrs. Jack Hartung

Mr. and Mrs. Jeff Hein

Karen Heller and Robert Becker

Nick and Karen Helton

Ann Henderson

Karen and Paul Herkes

Mr. and Mrs. Howard Hohnsen

Carol T. Holden

Charles Hornberger

Mr. Ronald M. Houck

Carol and Samuel Hughes

Robert Hutchinson

Adrienne and Chris Jackiw

Mr. and Mrs. Jose Jacobo

Carl and Shay Jacobson

Mr. and Mrs. Joseph Jendrzejczyk

John and Elizabeth Jenkins

Mr. and Mrs. James M. Jensen

Johansen Family Fund of DuPage Foundation

Susan Johansen

Deskin and Elizabeth Jones

Gregory Jones

Susan Jones

John Kalchbrenner

Mr. and Mrs. Harry F. Kamer

Amrit Kanesa-Thasan and Sally Weld

Mr. and Mrs. George Karosas

Mr. and Mrs. Michael Kelly

William and Molly Kennedy

Ms. Susan Khalaieff and Mr. Nicholas Khalaieff

Mr. and Mrs. Willis Kidd

Kumie and Yang K. Kim

Deborah Kirsch

Victoria Klimkiewicz

Mr. and Mrs. Charlie Koerner

Diann Kohley

Dr. and Mrs. Martin Kolinski

Angela and Siuhung Kong

Robert and Cheryl Kopecky

Mr. and Mrs. Mark Koten

Kristen and Charles Krah

Margaret Kunkel

Abdul Aziz and Rozina Lalji

Mary and Mike Lambesis

Walter and Mary Langbein

Mr. and Mrs. Robert Latelle

Jay and Suzanne Lawrence

Thomas and Elaine Layden

Mr. and Mrs. Robert Lehe

Thomas Lenz and Dianne Carter

Gail Leslie and John DeLand

Stephanie Lewin and Robert Pierson

Celine and Mark Lillie

Harriet Lindstrom

Andrea Majewski

Mary Ellen McArdle

Richard James McCann Foundation

Elaine McCluskey

Dr. and Mrs. Randall McGivney

Paul and Kimberly Mehring

Dr. and Mrs. Zeyd Merenkov

Janet and Martin Michel

Donnie P. Minyard and Lee B. Totzke

Ms. Yvonne Miranda and Mr. Rommel Miranda

Cathy and Paul Misniak

Susan Moore and Patricia Kiley

Mr. and Mrs. Dwight Morrow

Mr. and Mrs. Ted Nagengast

John and Marilyn Newlin

Fred Nolan and Mary Bahna-Nolan

Bernadette A. Nowicki

Ms. Sonia O'Dell and Mr. Peter Tsang

Mr. and Mrs. John Oleniczak

Mark and Jeanne Osgood

Sarah R. Packard

Ashley and Geoffrey Palmer

Lucy and Adrian Pask

Mark D. Paulus

Kris and John Petro

Ms. Patricia Pettrone and Mr. Christopher Haraf

Ms. Amy Phillips and Mr. David Phillips

Mr. and Mrs. Ravichandran

Greg Regan and Ulziikhishig Jambaldagva

James and Laurie Renn

Mr. Mike Rich and Mrs. Donna Harris

Mr. and Mrs. Chuck Roberg

Israel Rocha

Ms. Celia E. Rodee and Mr. Peter E. Cooper

Carol Jean Rogalski, PhD

Mr. and Mrs. Brent Rogers

Mr. and Mrs. Theodore Roknich

Barbara E. Rose

Dr. and Mrs. Alan Rosenberg

Dan and Lin Rosenthal

Mr. and Mrs. John Rowe

Carole A. Sachen

Ms. Mary Sauber and Ms. Susan Sauber

Mr. and Mrs. Timothy Scalf

Dr. and Mrs. David Schlieben

Harold and Cynthia Schmidt

Mr. and Mrs. Paul W. Schroeder

Jane Shapiro and Jennifer Thompson

Louise Sherman

Mr. and Mrs. Michael J. Siefert

Mr. and Mrs. Brian Sieve

Leeanne and Gordon Smith

Mr. and Mrs. Randy Smith

Kathleen and Andrew^ Spiess

Carin Sporrer

Mr. and Mrs. Phil Stanley

Ms. Sue Stealey

Mr. and Mrs. Nick A. Stoynoff

Kay and Jay Strayer

Chris and Renee Sullivan

Mr. and Mrs. Ed Swires

Deanna Taylor-Rodriguez and Francisco Rodriguez

Andrea and Jim Thome

Michelle and Steven Thorsell

Andy and Pam Tolve

Sally L. TreKell

Ms. Cindy Trennert-Lukens

Joan and Dave Trushin

Mr. and Mrs. John Tully

Mike and Linn Ann Tyrrell

Bruce and Mary Vancleave

Adam and Oriana Van Someren

Ms. Mardelle Vonderohe and Mr. Robert Vonderohe

Cam and Jacqueline Walker

Peter and Teresita Wang

Mr. and Mrs. Thomas Whalls

Kathryn Wilson

Bruce and Pam Wolfe

Ms. Phyllis Young and Dr. Mark Ferguson

Mr. James P. Zaluba

Jerry and Jody Zamirowski

Mr. and Mrs. R. Zaniolo

Mr. John Zavislak

Grizel Zepeda and Jeanette Alcantar

Mel Ziska

Ms. Nafsica Zotos

Bill and Sue Zumstein

Doug Zweig


* Indicates Trustee or Life Trustee
^ Indicates remembered


Institutional Funders

The Morton Arboretum gratefully acknowledges the following businesses, foundations, and government partners that made financial contributions in 2022.

$50,000 and above

Arbor Day Foundation

The Brinson Foundation

Gaylord and Dorothy Donnelley Foundation

F.A. Bartlett Tree Expert Co.

Fondation Franklinia

Hamill Family Foundation

Illinois Department of Commerce and Economic Opportunity

Illinois Department of Natural Resources

Institute of Museum and Library Services

International Paper

Invesco QQQ

Manitou Fund

Richard King Mellon Foundation

Molex Incorporated

National Science Foundation

One Tree Planted

United States Department of Agriculture, Animal and Plant Health Inspection Services

United States Department of Agriculture, Forest Service

United States Department of Agriculture, Natural Resources Conservation

The Walder Foundation

$25,000 to $49,999

Ball Horticultural Company

Bank of America

ComEd, an Exelon Company

Duly Health and Care

Kirkland & Ellis Foundation

Morton Salt

Nicor Gas

Tree Research and Education Endowment Fund

Vistra Energy

$10,000 to $24,999


A. Marek Fine Jewelry


Bartlett Tree Experts

Alfred Bersted Foundation, Bank of America, N.A., Trustee

Career Vision

Fernando S. Ereneta, Legacy Wealth Advisors, Raymond James Financial


Featherstone Inc.

Daniel P. Haerther Charitable Trust

Illinois Arts Council Agency

K & B Financial

Maxwell/Hanrahan Foundation

McCormick Foundation


Patriot Pavement Maintenance


Robert Bosch LLC

Spraying Systems Co.

Syngenta Crop Protection

United States Environmental Protection Agency

U.S. Bank

William Blair & Company, LLC

$5,000 to $9,999

Christopher B. Burke Engineering, Ltd.

William J. Clancy Foundation

CME Group Foundation

Coeur Mining

Patrick and Anna M. Cudahy Fund

Dover Corporation

Darwill, Inc.

Dr. Scholl Foundation

Fiducient Advisors

Green Mountain Energy

GreenState Credit Union

Ice Miller LLP

Illinois Tool Works Foundation


Rainbow TreeCare

Sevan Multi-Site Solutions


Verde Energy Efficiency


$2,500 to $4,999

Amsted Industries

Chicago Bears

Digital Insurance, LLC


Honda of Lisle

Icon Modern

McGraw Foundation

Helen and Curtis Pinnell Foundation

Plante Moran

Sebert Landscaping

Sunshine Cleaning Service LLC

The South Church


1922 Legacy Society

The 1922 Legacy Society recognizes those who have included The Morton Arboretum in their estate plans.

Ms. Debra Albers

Jessica and Chris Anderson

Anonymous (35)

Anna Caroline Ball*

Mr. and Mrs. Walter* W. Becky II

Eddie and Cynthia Bedford

Andrea Billhardt

Ms. Celestia Boughner

Charles Bowling^

Don and Mary Brown

Mr. Daniel S. Bures

Mr. and Mrs. Christopher* B. Burke

Steven Canavis

Dorothy Carbon

Sally and Philip Casper

Karla Christianson

Bill^ and Mary Sue Coates

Ginny Cook

David Coulter

Natalie Culley*

Dr. David Curd

Ms. Janice Deegan

Joy and Ron Detmer

Mr. and Mrs. James* F. Dickerson

Lynn A. Dieter and LaVora E. Singleton

Marshall and Jodi Dirks

O. Wesley Dodd

Dr. and Mrs. Gerard T. Donnelly

Carole R. and Peter E. Doris MD

Robert and Lori Everett

Bonnie G. Everhart

William J. and Mary Jo S. Fairbanks

Mr. Carl B. Fausey

Curtis B. Frank

Lynne S. Friedlander

Sharon Kotzin Frolick

Robert M. and Mary B. Funke

Dan and Charlotte Gallagher

Deborah and Patrick Garner

Hendrica Ghali

David and Maggie Gibson

Betty Glover

Howard Goldstein and Margaret (Peggy) McGrath

Mary Louise Gorno

Michael and Gina Greenen

Judy Grey

Ann* and John Grube

Daniel P. Haerther Charitable Trust

John M. Hagstrom

Mrs. Anne Hall^

Marilyn J. Halperin

Anita North Hamill

William and Linda Hanley

Daryl Hartman and Keith Watson

Frank^ and Joan^ Hendrickson

Victor and Julie Hildebrand

Dan^ and Gloria Hollister

Mr. and Mrs. Robert Hunt

Mr. and Mrs. Joseph Jendrzejczyk

John A. and Virginia^ H. Jones

Harry and Maritherese Kamer

Victoria A. Klimkiewicz

Natalie Knight

Robert and Sharon^ Kohnen

Dr. Ronald J. Kolar and Nancy J. Kolar

Dorothy E. Larsen

Eric Lee and Susan Langosch

Mr. and Mrs. Byron Leonard

Bernie and Janice Mack

Suzette M. Mahneke

Tim^ and Patti Malloy

Michael^ and Margaret McCoy

Mrs. Olive McKay^

Cathy and Al Meo

Cathy and Paul Misniak

Mrs. Rowena C. Montgomery

William and Bonnie Mucha

Mary M. Mullen

Richard James Murphy

Suzanne Marie Noller

Edith Northfield

Frank S. Orto

Mr. and Mrs. Martin F. Ozinga

Andrew L. and Jeanne Pagorek

Bonnie M. Park

Irma Parker^

Jane and Henry* Pearsall

Suzy and Bob Peters

Mr. and Mrs. Dennis Prepejchal

Mr. and Mrs. Bryan Pugh

Andrew and Melinda Querio

The Phillips Quinn Family

Ginny and Don Raths

Ann and Bob^ Reiland

Kell and Barb Reimann

Sherry and Bob^ Reum

Paul E. and Jacquelyn R. Rewerts

Mr.^ and Mrs.^ Roy Ringo

Carol Jean Rogalski, PhD

Robert B. Rosenberg

Jacqueline M. Ryan

Verie Sandborg^

Hildegarde Schmidt

Lee S. Selander

Susan Simmons

Mrs. Hilary C. Smith

Mr. and Mrs. Duane^ E. Stout

Craig A. Summers

Austin and Jordan Thomas

Ms. Lori Trinche

Louhon and Carolyn Tucker

Lorna Turner

Bonnie R. Valiant

Dee L. Van Leeuwen

Ms. Sharon M. West

Philip C. Wiederhold

Ms. Mary Glenn Wiley^

Nancy Hamill Winter

Bobby Xhilone

Mary A. Zell

The Zigterman Family Trust

Estate Gifts

Mary Ann Finnegan Trust

Deborah Gray Trust c/u Harold Gray Trust

Helen Gray^

Mr.^ and Mrs.^ Arnold Kupec

Verie Sandborg^

William Van Der Laan Estate Fund

The Estate of Joe and Betty Walczak

Beverly C. Yacko^


* Indicates Trustee or Life Trustee
^ Indicates remembered


Employee Donors

Scott A. Allen

Jessica Anderson

Timothy Anderson

Anonymous (2)

Patty Arend

Sara Arnas

Barbara Baron

Eileen Barrett

Jan Beck

Dave Bonini

Beth Botts

Noah Brewer

Brenda M. Brocato

Denise Bulthuis

Amy Byrne

Walter Camplin

Nancy Ciesiel

Shannon Cleary

Amy Dahn

Kathryn Damato

Kathi D'Amico

Victoria A. DeVylder

DM DiSantis

Carissa Dougherty

Maribeth Dougherty

Jenna Drolen

Kevin Earll

Elaine Ebeling

Colleen E. Emrick

Barb Epley

Joseph Eriser

James S. Fawley

Fred Fedewa

Jeanne Fox

Monica Fuchs

Jacqueline Fucilla

Jacquie Gammons

John Garrison

Lisa Gaynor

Emilian Geczi

Megan M. Gensler

Sara Glas

Paul Gooding

William Gora

Charles Gutsmiedl

Marlene Hahn

John Hansen

Rita M. Hassert

Carlin Hastings

Deborah Heinze

Retta Hennessy

Kristin Herzog

Gregory Hey

Heather Jacobsen

Lori Jacobsen

Susan L. Jacobson

Todd C. Jacobson

Joycelyn Jaksa

Karin Jaros

Jennifer Jo Jones

Julie Jones

Laura Kamedulski

Mary Claire Kastenholz

Patrick Kelsch

Kevin Kirk

Frank C. Klock

Anne Klos

Natalie Knight

Jennifer Kohl

Jill Koski

Holly Larson

Thomas Laskowski

Alicia LaVire

Richard Leidolf

Tari Marshall

Jenelle Metcalf

Cynthia Minnis

Dana Mroczek

Mary Kay Mutz

Lynette Myers

Kate Myroup

Kathryn Neuffer

Thang Nguyen

Kelly Nolan

Danielle Nowak

Judy Olson

Josh Olzen

Sue Paist

Carolann Parker

Mary Pavia

Nancy Peske

Larry Peterman

Ronald P. Picco

Trinity Pierce

Nancy J. Porte

Kimberly Powell

John J. Puljung

Sai Ravichandran

Robert Reilley

Edelyn Reyes

Mike Rich

Christy Rollinson

Susan Ross

Dana Rotz

Margaret C. Rurik

Kent Schielke

Natalie Schilke

Emily Katherine Schumacher

Lydia A. Scott

Robert Snow

Monica Solomon

Kathleen Spiess

Paul Stauffer

Scott Swords

Austin Thomas

Caitlyn Turner

Becca Van Loan

Sue Wagner

Kathy Wakai

Lisa Warren

George Wick Jr.

Jill A. Wilkinson

Jim Wilkinson

Pete Wilt

Barbara J. Zigterman

Nicholas Zubenko


In-Kind Donors

A. Marek Fine Jewelry

Angeli's Restaurant

Aramark Corporation

Autre Monde

Bien Trucha Group

Dawn Bishop

Blackberry Market

Boxed Water Is Better

Ken Carlson

The Christopher Family

Cookies by Ivy

Costello Jewelers

Cress Creek Country Club

Jennifer Crump

Heather Dalskov and Diane Urban

Judith Dykema

Ellce Designs

Enerpace Leadership Coaching

Rose and Bob* Fealy

Linda Gavigan

Mr. and Mrs. Mark* Gossett

Judy Grey

The Hamilton Collection

The Home Depot

International Paper

James R. Knight

Nancy Kolar

William Kurtis and Donna LaPietra

Lightswitch, Inc.

Magic Moment Wedding

Marshall Pierce & Company

MultiMedia Squared

Anne Nordhaus-Bike

Steve and Ruth Ostrodka

Jeanne and Jack Phelan

Phillips Flowers

Elaine Pierce

Prairie Wind Native Plants

Sanders Fine Portraits

Jacqueline Vossler


Jarmila Zemla


* Indicates Trustee or Life Trustee

Statement of Activities

Year ended December 31, 2022

Revenue and Support


  • Retail Services $10,841,113
  • Admissions 2,457,800
  • Education 1,235,283
  • Visitor Events 5,823,377


  • Development 11,620,965
  • Government Grants 3,161,800
  • Membership 5,998,064

Total Revenue and Support




  • Collections and Facilities $10,670,659
  • Education 1,290,977
  • Science and Conservation 6,170,112
  • Public Programs 2,105,248
  • Retail Services 8,817,351
  • Visitor Services 4,422,314
  • Interest 1,577,049
  • Depreciation 3,380,867

Support Services

  • Administration $5,799,344
  • Marketing 2,517,266
  • Membership 1,552,778
  • Development 2,284,249

Total Expenses


Increase (Decrease) in Net Assets

  • From Operations $(9,449,812)
  • Investment Activity $(26,247,816)

Increase (Decrease) in Net Assets




Statement of Financial Position

Year ended December 31, 2022


  • Cash $5,838,249
  • Investments in Marketable Securities, at Fair Value 264,022,798
  • Receivables 8,411,577
  • Property and Equipment, Net 59,932,572
  • Other Assets 1,117,036

Total Assets

$ 339,322,232


  • Accounts Payable and Other Accrued Liabilities $ 7,436,833
  • Bonds Payable, Net 51,099,465

Total Liabilities

$ 58,536,298

Net Assets

  • Without Donor Restrictions $268,580,000
  • With Donor Restrictions 12,205,934

Total Net Assets


Total Liabilities and Net Assets



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