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Staff

Sherri Hammerman, Administrative Assistant

bio picSherri Hammerman joined Rock Creek Conservancy as Administrative Assistant in April 2014. She has a degree in journalism from the University of Georgia and previously worked as a graphic artist at Fahlgren Advertising, USA TODAY and American University, and also taught early childhood music in Bethesda. Sherri enjoys running on the trails near Meadowbrook Park.

Matthew Fleischer, Executive Director

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Matthew Fleischer was appointed as Executive Director of Rock Creek Conservancy on February 3, 2014.

Matt brings a new energy to the Conservancy and is tasked with growing the donor base and increasing the impact the organization has on Rock Creek Park and its watershed. The Conservancy is poised for growth and Matt is excited to play a key role in helping the national Rock Creek Park celebrate its 125th Anniversary in 2015.

Alex Sanders, Program Manager

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Alex first learned about the Rock Creek Conservancy as a volunteer with the Potomac Appalachian Trail Club. He joined Rock Creek Conservancy in April 2013. He has degrees from George Mason University in history, and worked as a research associate at Morgan Angel & Associates in the fields of American Indian and environmental history. He is also an appointed member of the Arlington County Environment and Energy Conservation Commission and has participated in several Arlington County commissions concerning stormwater management, stream restoration, and urban forestry.

Sarah Mitchell, Development Officer

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Sarah joined Rock Creek Conservancy in November of 2012. She completed her Bachelor’s degree at Macalester College in St. Paul, Minnesota. She has worked in marketing, event planning, and fundraising at The Nature Conservancy and Greenpeace as well as the Autism Society. As a native of the Washington, DC area, she grew up near Rock Creek and is having a great time introducing her children to it.

Karen Zeiter, Volunteer Coordinator

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Karen joined Rock Creek Conservancy in August of 2012. She graduated with a Bachelors of Science in Environmental Studies from Towson University and first started working with Rock Creek Conservancy as a Chesapeake Conservation Corps Volunteer. She has worked at the Food and Drug Administration in the Department for Environmental Safety and Strategic Initiative, the Chesapeake Bay Trust, and REI. As an active Outdoor Trip Leader throughout her college career, Karen enjoys outdoor recreation activities such as rock climbing, hiking, and backpacking.