Jeffrey P. Bonner, Ph.D., Dana Brown President & CEO

Dr. Jeffrey P. Bonner

In April 2002, Dr. Bonner was appointed President & CEO of the Saint Louis Zoo. In 2009, his position was endowed by the Dana Brown Charitable Trust. He has chaired the Association of Zoos and Aquariums (AZA), the Amphibian Ark, the International Species Information System, and the Madagascar Fauna and Flora Group. He has served on the board of the World Association of Zoos and Aquariums (WAZA) and currently serves on several boards, including the Conservation Breeding Specialist Group, BioSTL, Higher Education Channel TV, Forest Park Forever and St. Louis Regional Chamber of Growth Association (RCGA). He is a member of The Explorers Club, the Academy of Science and the AZA. Dr. Bonner received his doctorate from Columbia University in New York. He is a Burgess Fellow, Traveling Fellow, Fulbright Scholar, President's Fellow and a recipient of the National Research Service Award. Dr. Bonner is the author of numerous articles and books, including "Sailing with Noah, Stories from the World of Zoos."  Read more about Dr. Bonner.

Michael Macek, MBA, Saint Louis Zoo Director

Dr. Eric Miller

Michael Macek, former Curator of Birds, was named Chief Operating Officer (COO) of the Saint Louis Zoo in 2016 and Saint Louis Zoo Director in 2019. Macek is responsible for the overall vision, leadership and support for the Zoo and its core zoological and operational activities. The following departments report to Macek: Animal Health, Reproductive and Behavioral Sciences, Nutrition, Education, Conservation and Audience Research and Evaluation, Facilities Management, Business Operations, Animal Collections, the Saint Louis Zoo WildCare Institute (WCI) and the Saint Louis Zoo Institute for Conservation Medicine (ICM). Macek earned a MBA from Loyola University, during which time he worked at Brookfield Zoo. He came to St. Louis in 1986 and over the past 30 years has moved from Keeper to Zoologist to Curator to COO and now Saint Louis Zoo Director. He also served as director of two WildCare Institute centers—the Center for Conservation in Punta San Juan, Peru and the Center for the Conservation of the Horned Guan in Chiapas, Mexico. Macek has been very active on Association of Zoos and Aquariums (AZA) advisory groups and program management teams.

Jo-Elle Mogerman, Ph.D., Saint Louis Zoo North Campus Director 

Dr. Mogerman leads the Zoo’s new North Campus, a 425-acre property located in north St. Louis County in the city of Spanish Lake. She is responsible for the operations of the Conservation & Animal Science Center and public attractions that will connect people with nature and animals. She oversees the creation and the development of this new and exciting attraction for the St. Louis community and tourists alike. Dr. Mogerman recently left the Shedd Aquarium where she served as the Vice President of Learning and Community since 2017. In that role, she oversaw the vision and strategic direction for all learning and community programs. Prior to Shedd Aquarium, Dr. Mogerman spent nearly 14 years at Brookfield Zoo. She also served as an Illinois Nature Preserves Commissioner and was Chair of the Diversity Committee for the Association of Zoos and Aquariums (AZA). She obtained a bachelor’s degree in biology from Macalester College, a master’s degree in conservation biology from the University of Minnesota as well as a doctorate in biology from the University of Illinois at Chicago.

Cynthia Holter, CFRE, Senior Vice President, External Relations

Cynthia Holter

As Senior Vice President, External Relations, Cynthia Holter, CFRE, is responsible for development, marketing, communications, membership, sponsorship, public relations, special events and public affairs. She has been involved in philanthropy for over 30 years and has helped raise more than $200 million in the last decade for Zoo programs. Before joining the Saint Louis Zoo, she served in marketing for Missouri's Department of Economic Development, working closely with then-Governor Kit Bond, elected officials and lobbyists; she also was a major gifts fundraiser for the School of Forestry, Fisheries and Wildlife, now the School of Natural Resources at the University of Missouri-Columbia. Holter is a member of the Association of Fundraising Professionals (AFP) Senior Professionals Committee and the Government Affairs Committee for the Association of Zoos and Aquariums (AZA). She also assists in fundraising for her alma mater, Columbia College, and for the St. Louis Black Repertory Theatre and the St. Clair County Historical Society.

Cassandra J. Brown Ray, Chief Financial Officer

Cassandra Brown Ray, CPA, MBA, joined the Saint Louis Zoo in 1992 as a staff accountant and has served as the Controller/Director of Finance since 1999. In 2019, Ray was named Chief Financial Officer and is responsible for day-to-day operations of the Finance Office. She also works closely with the governance of the Saint Louis Zoo, including the Audit, Investment and Finance committees. Ray serves on the Francis Howell School District Finance & Operations Committee, the Audit Committee of the National Multiple Sclerosis Foundation and the St. Patrick Center Board of Trustees. She is a graduate of FOCUS Leadership St. Louis (2014) and a member of the inaugural class of the FOCUS Impact Fellows, a team charged with developing and implementing an action plan using the 2015 Ferguson Commission Report as a guideline. She earned her MBA from Lindenwood University and her undergraduate accounting degree from the University of Missouri-Columbia. Before joining the Zoo, she worked for General Dynamics and McDonnell Douglas.

Stephen E. Barth, Vice President, Special Projects

Stephen E. Barth

Stephen E. Barth served as the Zoo’s Chief Financial Officer from 1998 through 2018. He joined the Zoo as Director of Business Operations in 1993 after serving in operations and accounting management positions with General Dynamics and Bonafide Oil Co., Inc. In 2019, Barth changed roles and is the Vice President for Special Projects. His responsibilities focus on the visitor experience and operational excellence, leading some high-priority projects for the Zoo.

Luis Padilla, DVM, Dipl. ACZM, Vice President, Animal Collections

Jack Grisham

Promoted to Vice President of Animal Collections at the Saint Louis Zoo in 2019, Dr. Padilla is responsible for the overall day-to-day care of the Saint Louis Zoo’s Animal Division, including the animal collection, facilities and the Animal Division staff. Dr. Padilla served as the Zoo’s Director of Animal Health since 2013. Prior to becoming the Zoo’s Director of Animal Health, he served in veterinary roles and supervisory roles at the Saint Louis Zoo, the Smithsonian Conservation Biology Institute, the Smithsonian National Zoological Park and the Oklahoma City Zoo. Dr. Padilla received his doctorate in of veterinary medicine from Cornell University. He also completed his residency in zoological medicine at the Saint Louis Zoo.  

Dustin Deschamp, Vice President, Internal Relations and General Counsel 

Dustin Deschamp

In August 2015, Dustin Deschamp was promoted to Vice President, Internal Relations. As the Director of Human Resources at the Zoo since 2008, Deschamp has been responsible for recruiting and hiring at the Zoo. He has managed the Zoo's labor and employment issues and developed and implemented Zoo-wide policies and procedures. He directs the Zoo's Human Resources; IT Services; Safety, Security & Risk Management; Volunteer Services; and Workforce Training & Development departments. An attorney licensed in the states of Missouri and Illinois, he also is the Zoo's in-house general counsel. Deschamp came to the Zoo after serving as an associate attorney at two St. Louis law firms, Copeland Thompson & Farris and Greensfelder, Hemker & Gale. He holds a Juris Doctor (JD) degree from Saint Louis University School of Law, where he was a member of the law journal and selected for an academic excellence award. He earned a Bachelor of Science degree in marketing, graduating magna cum laude, from Washington University in Saint Louis, John M. Olin School of Business. Deschamp has for several years been active in Big Brothers Big Sisters of Eastern Missouri. He also was selected to participate in Focus St. Louis, an organization dedicated to engaging citizens to participate in active leadership roles.

David F. McGuire, AIA, William Bernoudy Vice President, Architecture and Planning

David F. McGuire

David F. McGuire joined the Saint Louis Zoo in 1995 and is the Vice President of Architecture and Planning at the Zoo. In 2014, his position was endowed by the Gertrude and William A. Bernoudy Foundation. He is responsible for design and implementation of various Zoo improvements, planning for future additions or modifications to facilities and exhibits at the Zoo, oversight of all construction and review and approval of construction, signage, horticulture, and other activities that affect the aesthetics of the Zoo's 90-acre campus. He holds a degree in architecture from Washington University in St. Louis and is certified in the Leadership in Energy and Environment Design (LEED) program. He is licensed by the Missouri Board of Architecture, Professional Engineers and Land Surveyors. Before joining the Zoo, he served for five years as Executive Vice President of a St. Louis-based architectural services firm. He is active in the Association of Zoos and Aquariums (AZA) and served as President of the Aquarium and Zoo Facilities Association (AZFA).

Jim Madison, Vice President, Business Operations

Jim Madison

Jim Madison joined the Zoo in 1998 as a frontline employee with the Visitor Services department, working as a parking lot attendant during high school and college. Madison received his degree in business administration from Saint Louis University in 2003. Over his tenure at the Saint Louis Zoo, he has held many positions, including Assistant Manager of Visitor Services, Manager of Visitor Services and most recently, Director of Business Operations. In 2019, Madison was named Vice President of Business Operations where he oversees the daily operations of the Zoo's Visitor Services, Retail, Food Service, Sales & Catering and Distribution departments. He is responsible for developing and evaluating business models for new revenue and visitor experience-related opportunities. Madison also oversees the traveling exhibit/seasonal programs, including Stingrays at Caribbean Cove (2009-present). An active participant in International Association of Amusement Parks & Attractions (IAAPA), Madison is an IAAPA Certified Attractions Leader.