Our Staff

Matthew "Matt" Johnston

Executive Director

Matt Johnston is the Executive Director of the Arundel Rivers Federation.

He previously served as Anne Arundel County’s first Environmental Policy Director. As Environmental Policy Director, Matt led county and statewide efforts to pass new forest conservation and stormwater management laws, and ushered in a new conservation-first, smart growth focus among County agencies.

Prior to becoming the County’s first Environmental Policy Director, Matt was Senior Policy Analyst with the US EPA’s Chesapeake Bay Program, and faculty member of the Department of Environmental Science and Technology at the University of Maryland.

Matt is originally from the Midwest and holds a Master of Public Affairs degree in Environmental Policy and Natural Resource Management from the Indiana University’s School of Public and Environmental Affairs, as well as undergraduate degrees from the University of Missouri.

He moved to Maryland twelve years ago to begin his environmental policy career with the Chesapeake Research Consortium working alongside the scientists right here at the Smithsonian Environmental Research Center.

He now lives with his wife and son across the Rhode River from SERC, and can always be found on a summer day watching St. Louis Cardinals baseball, hiking through Maryland, or kayaking the rivers of Anne Arundel County.


Email: [email protected]

Jennifer Carr

Director of Restoration

Jennifer graduated from Penn State University with a degree in Geography and a minor in Environmental Science. After graduation, she worked for an AmeriCorps non-profit in Baltimore, interned with the International Rescue Committee and taught in a rural village in Serbia. After returning home, Jennifer joined the Federation in 2011 as a one year Chesapeake Conservation Corps Member funded by the Chesapeake Bay Trust. The Federation hired her in 2012 and she has worked at a variety of positions, including coordinating volunteers, event planning and acted as the unofficial IT officer. She found her niche in Restoration and worked her way from an assistant to Director of Restoration.


Email: [email protected]

Taylor Stark

Development and Communication Associate

Taylor Stark is a recent graduate from the University of Maryland, College Park with a double major in Communication and Geographic Information Systems. Previously, Taylor interned for the Mattawoman Watershed Society, the Alliance for the Chesapeake Bay, the Choose Clean Water Coalition and the National Wildlife Federation.

Taylor spent most of her childhood at her family cottage on Herring Bay, which is part of Arundel Rivers Federation’s southern jurisdiction. She’s pleased to work for an organization that supports these important local waterways.


Email: [email protected]

Katie Mullen

Rivers Program Manager

Katie graduated from the University of Maryland College Park with a B.S in Biological Sciences and a minor in Sustainability Studies. She started her career as an environmental educator with the Living Classrooms Foundation teaching Chesapeake Bay ecology on the skipjack Sigsbee, a 100+ year old sailing vessel traditionally used for harvesting oysters.

Soon after, Katie joined the Chesapeake Bay Foundation and guided students as they explored wetlands, oyster reefs and the watermen’s community of Smith Island to discover the natural and social systems impacting the health of the Bay. Katie is excited to bring her experience to the Federation and will continue building connections with watershed residents through community outreach and restoration efforts.


Email: [email protected]

Mallory Box

Seasonal Field Technician

Prior to becoming a Seasonal Field Technician, Mallory was a linguist in the US Navy and separated from the service after 13 years. She participated in the DOD SkillBridge program, which allows active duty military members in their last 6 months of service to intern at an organization of their choice to gain the necessary skills to successfully transition to the civilian workforce. Mallory chose Arundel Rivers for her internship. Mallory is passionate about the environment and is interested in non-profit conservation work.


Email: [email protected]

Get Involved

The Federation is effective because of the people who live,
work and play on the South, West, and Rhode Rivers.