Meet our staff

John Rakowski

Executive Director

Tammy Lorge

Senior Business & Human Resources Manager

Amanda Giebink

Nature Center Administrative Assistant

Sharon Cross

Director of Development

Renee Buchholz

Membership & Database Manager

Hannah Sedgwick

Volunteer & Special Events Coordinator


Anna Jean Hallmann

Grants Specialist

Amy Casey

Marketing & Communications Specialist

Julie Dickson

Administrative Assistant for Development

Matt Smith

Director of Research & Conservation

Jana Gedymin

Research Manager

Nathaniel Reinartz

Conservation Manager


Mary Holleback

Naturalist & Citizen Science Manager

Keith Hiestand

Senior Facilities Manager

Don Gilmore

Buildings & Grounds Assistant Manager

Toddianna Kraemer-Curtiss

Buildings, Grounds, & Farm Assistant

Dan Wundrock

Buildings & Grounds Assistant

James Hagedorn


Jeff Kierzek

Director of Education

Steff Merten

Associate Director of Education

Jana Schwai

Curriculum & Instruction Specialist

Alina Prahl

Nature Center Program Manager

Bailey Veal

Adventure Education Manager

Kaitlin Felton

Education Administrative Assistant

Briana Bateman

Community Outreach Coordinator

Rachel Race

Scientist in Residence (Northern Ozaukee School District)

Ronald Bell

Scientist in Residence (LUMIN Schools)

Carrie Hiestand

Lead Educator

Nikki Aterianus

Environmental Educator

Lesley Ammons

Environmental Educator

Pam Uihlein

Environmental Educator

Lauren Wendland

Environmental Educator

Molli Rasmussen

Environmental Educator

Sydney Lawrenz

Environmental Educator

Mich Kraemer

Environmental Educator

Luke Yourzak

Environmental Educator

Become a Member

Take advantage of all the benefits of a Riveredge membership year round!

Learn More