Our Staff, Board of Directors, and the Education Team

We work to nurture connections between plants and all people, past and present, in an inspiring natural setting that invites discovery. Our employees, Board of Directors, and Education Team make our operations and programs possible.

• Mike Cooper, Executive Director
• Cindy Hulstein, Wedding & Event Coordinator
• Lori Sheldon, Administrative Assistant 
• Natalie Sorenson, Education & Social Media Coordinator 

Wegner Arboretum Society Board of Directors

Our board represents a cross-section of our community and has a passion for our organization and those we serve. The members work hard to ensure long-term sustainability of the organization.

• Mike Cooper, Executive Director 
• Mike Crane, Board President
• David Rezac, Vice President
• Michelle Erpenbach, Secretary
• Ben Arndt, Treasurer
• Heather Kittelson
• Dominic Walkes
• Dr. Ann Wilson  
• Paul DeJong 
• Dick Brown
• Robin Aden
• Anthony Pizer
• Lisa Prostrollo
• Don Kearney, Director Sioux Falls Parks and Recreation 
• Scott Anderson, Minnehaha County Planning Director

Mary Jo Wegner Arboretum Society Board Committees

Education Committee

Ann Wilson (Chair)

Non-Board Members
Ann Kolbrek

Governance Committee

David Rezac (Chair)
Mike Crane
Ben Arndt
Michelle Erpenbach
Don Kearney
Dominic Walkes

Development Commitee

Mike Crane
Ben Arndt
Heather Kittelson
Don Kearney
Paul DeJong

Non-Board Members
Jessica Wells
Sue Aguilar

Building & Grounds Committee

Scott Anderson (Chair)  
Paul DeJong

Non-Board Members
Gregg Johnson
Ann Randall
Mary Ellen Connelly