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Meet the Staff


Gail Farmer
Executive Director

Gail Farmer joined WVWA as Executive Director in November 2016. Gail has spent the last ten years in leadership positions at environmental nonprofits, most recently serving as Director of Education at the Schuylkill Center for Environmental Education. Her family lives in the Wissahickon watershed, frequently enjoying the Green Ribbon Trail in Flourtown. She enjoys birding, hiking, and exploring parts of the watershed with her husband and two sons.

Development Department

Anna Marchini
Director of Development

With a Master’s degree in Environmental Conservation Education from NYU, Anna’s career began as an Urban Park Ranger in the wilds of New York City. She continued to work in the science and environmental field until someone discovered she had a knack for fundraising. Having worked in New York, Seattle and Philadelphia in some of the region’s most effective organizations, she is thrilled to be back to her roots at the Wissahickon Valley Watershed Association.  Anna lives in Philadelphia with her husband, two daughters and couple of cats. When not volunteering with the Girl Scouts or the local public school, she enjoys hiking, birding, a good glass of wine and an occasional run.

Lisa Hansell
Senior Manager, Development 

Lisa joined WVWA in 2003.  As Development Manager, Lisa is responsible for the stewardship of WVWA members and donors including management of the database. You will see Lisa welcoming attendees to most WVWA events at the registration table. Prior to working for WVWA, Lisa was a Corporate Trainer and Project Manager for Rosenbluth International.  Lisa has lived in Abington Township her entire life and resides in Roslyn, in the Sandy Run Watershed, with her husband, Todd, two daughters, and four cats.  She also volunteers for the Pennypack Farm & Education Center.

Janis Lehrer
Development Assistant

Janis joined WVWA in March of 2019. She was drawn to her position at WVWA because of her passion for protecting the environment and her love of nature. Her prior work experience is all within the nonprofit realm, including several religious organizations and as a Project Manager for a charter school, where she worked closely with the school’s executive leadership on compliance and reporting to Pennsylvania Department of Education standards. She lives in the Wissahickon Valley Watershed with her husband, daughter, son, and dog. She enjoys cooking, practicing Taekwondo, and hiking with her family.


Engagement Department

Jenn Bilger
Director of Engagement

Jenn joined WVWA in May of 2017 as Conservation Programs Manager. She is extremely excited to work with the land stewardship and water quality teams, assist in developing and managing various education and outreach programs, and cultivate partnerships and grant opportunities in this exciting new era for the Watershed! She has a Bachelor’s in International Studies, with a concentration in French and a minor in English, as well as a Masters in Environmental Education. She has worked in the environmental field for over 13 years at various centers, most recently as Summer Camp Director & Environmental Educator at Silver Lake Nature Center in Bristol, PA for the last 10 years. Jenn grew up in New Hampshire and currently lives in Newtown, PA with her husband David and young son Ryan. She has always loved being outside in nature and connecting people to their natural spaces, and she is thrilled to bring her passion and energy to WVWA. 

Lindsay Blanton
Water Programs Manager

Lindsay has always been fascinated by water, growing up next to the Delaware River. After graduating from University of Rochester in May 2013, she completed a year of service in AmeriCorps as a Watershed Ambassador with the NJDEP. As Outreach Coordinator, Lindsay conducts educational presentations to municipalities, community groups, students and the general public. She also works closely on the Wissahickon Clean Water Partnership, an initiative looking to develop a TMDL Alternative for the Wissahickon Watershed and collaborative approaches to improving water quality. Lindsay manages our Creek Watch volunteer program and loves connecting with volunteers and communities over shared passion for the Wissahickon Creek.

Kristy Morley

Kristy began volunteering for WVWA at the MAPS Bird Banding station in 2015, and later became the Conservation Resources Stewardship Intern in 2016. Largely a self-taught naturalist and avid birder, Kristy graduated from Delaware Valley University and completed her Pennsylvania Master Naturalist certification in 2016. She is currently working on completing her Designing With Natives Certification. Kristy is looking forward to developing and delivering programs that highlight the variety of habitats and inhabitants of the preserves WVWA manages.  

Suzanne Smith-Oscilowski
Environmental Educator

Suzanne has worked for WVWA since 2011 and currently oversees education programs. She is responsible for ongoing programs as well as the development of new programs for students from early elementary through college as well as adult community programs.  Born in Philadelphia but having lived in other areas of the United States, Suzanne has several undergraduate and graduate degrees as well as a Pennsylvania teaching certification.  Suzanne enjoys gardening, running, cycling and is passionate about environmental issues.

David Froehlich
Head Miller

Following two years as a city planner/Peace Corps Volunteer in Shiraz, Iran, David joined the staff of the Bucks County Planning Commission. There, as Chief of County Wide Planning he oversaw the preparation of the County’s first Natural Resources and Parks Plans. In 1976 he became the WVWA’s Executive Director and served in that capacity until 2006. He continues as a part-time Association employee as Miller at WVWA’s Evans/Mumbower Mill. He is also involved in the remediation of the Wissahickon Waterfowl Preserve outside of Ambler. 


Conservation Department

John Ferro
Director of Conservation 

John has been with WVWA since 2008 in our Stewardship Department.  Growing up close to the Wissahickon and spending childhood days around the creek, the creek has always been a part of his life.  John came to WVWA with a degree in Environmental Science from Drexel University and is now pursuing a Master’s degree from Temple University.   John does the daily maintenance of the properties while focusing on the larger property management goals for all of WVWA lands.

Margaret Rohde
Conservation Manager

Margaret is a native of Northern New Jersey, where she grew up spending her days outside, fishing, hiking, herping, birding, and exploring the lakes and woods around her home. She graduated in 2012 from Washington College with a degree in Environmental Studies and since 2011, has worked on avian research projects throughout the north and southeast. As our Conservation Manager, Margaret plans and implements habitat management and restoration projects on our preserves, oversees trail and preserve maintenance, and manages wildlife and vegetation monitoring activities to assess habitat quality and determine the long-term impacts of our management and restoration work.  She is an NABC Certified Bird Bander, County Coordinator for Philadelphia County for the Bluebird Society of Pennsylvania, and serves on Wyncote Audubon's Board of Directors.

Pat Oelschlager
Stewardship Assistant

Pat joined the WVWA in March of 2018. He is passionate about work that restores both healthy ecological relationships and people’s connection to the land. Pat graduated Juniata College in 2014 with a Bachelor’s in Environmental Science.  His work prior to joining WVWA included environmental education, volunteer coordination, and research studying interactions between beavers and stream/riparian ecosystems across landscapes over time. Outside of his work with WVWA, Pat loves being in nature as well as playing music on the fiddle, banjo, guitar or just about anything with strings. If you can’t find him he’s usually off the beaten path in search of wild edibles, shed deer antlers or prime hunting, fishing, and waterfowl viewing spots.


General Administration

Michaelle Fleisher
Director of Finance & Human Resources

Michaelle joined WVWA in July 2016. From her career start in public accounting to multiple progressions in the telecommunications industry, she has led finance, human resources and operations teams.  Throughout all of these assignments, Michaelle has been passionate about mentoring, leading women’s groups and college intern programs.  She loves to volunteer in her community and supports many organizations, she is currently in her 15th year on the Board of Managers at the Ambler Area YMCA. Michaelle and her husband have raised their two sons in the Wissahickon Valley, you are likely to see them around at events in the area. Their dog, Nellie, is a familiar tail wag at the Watershed, she has her own spot at work and acts as ambassador to any who enter our doors.

Madalyn Neff
Communications Specialist

Madalyn joined WVWA in 2014. She loves connecting with the public to share the work that the organization is doing and creating a greater awareness of what the Wissahickon Valley has to offer. She is a graduate from Temple University's School of Media and Communication with a Bachelor's Degree in Public Relations and minors in both Sociology and Spanish. She enjoys hiking, traveling, reading, playing Super Mario World, and spending time with her cat, Madame Poppy Pomfrey. 

Brianna Virginio
Administrative Assistant

Brianna joined WVWA in April of 2018. Her love for nature is what drew her to WVWA. During her free time, Brianna spends her days on hiking adventures, exploring creeks, kayaking or sharing her passion for the natural world through photography. Local to the Wissahickon Valley, Brianna graduated from Gwynedd-Mercy University with a Bachelor's degree in Communications. Prior to working with WVWA, Brianna has served a variety of administrative roles over the last 5 years. She is thrilled to bring her administrative and communications skills to the organization.