Who We Are

Staff & Board


  • Gail Farmer

    Executive Director

    Gail brings to Wissahickon Trails 20 years of experience in the environmental nonprofit sector. When asked to summarize her role in a single word, she said “relationships.” She spends her time in partnership with staff, board, donors, and other community leaders to ensure that Wissahickon Trails is able to effectively fulfill its mission today, tomorrow, and for many years to come.    

    Gail currently serves on the Montgomery County Planning Commission’s Open Space Board, Philadelphia Water’s Green City, Clean Waters Steering Committee, the Water Quality Advisory Committee of the Delaware River Basin Commission, and is an advisor to the Wissahickon Clean Water Partnership.  She is a Senior Fellow of the Environmental Leadership Program and a Community Scholars Fellow of the University of Pennsylvania. In 2018, she received PennFuture’s Woman of Community Engagement and Environmental Education Leadership Award. Gail earned her M.Sc. in Environmental and Forest Biology from the S.U.N.Y College of Environmental Sciences and Forestry in 2001.  

    Gail lives in the Wissahickon watershed with her husband and two boys who share her passion for protecting, stewarding, and enjoying the natural world.  In her out-of-office time Gail likes to play the guitar, read, and explore the outdoors with her family. 

Development Department
  • Anna Marchini

    Development Director

    Anna creates opportunities for people to invest in work that is meaningful to them. A native New Yorker, Anna spent nearly a decade in Seattle before settling in Philadelphia. She began her professional career in the environmental field as a New York City Park Ranger, where her duties ranged from education programs to wildlife rescues to park enforcement. She firmly believes in access to open space and a healthy environment for everyone.  Anna is a Certified Fundraising Executive (CFRE) and is an active member of the Association of Fundraising Professionals (AFP)-Philadelphia chapter. 

    Anna is mom to two daughters, an ardent coffee drinker, amateur birder, and occasional runner.

  • Lisa Hansell

    Senior Development Manager

    Lisa manages our fundraising events and corporate giving.  She started at Wissahickon Trails in 2003 and over the years, she has enjoyed getting to know many of our donors, sponsors, and volunteers. Lisa loves to keep it local. She grew up and still resides in the Wissahickon watershed in Abington Township.  

    Lisa loves to cook, especially using her veggies from Pennypack Farm, where she also volunteers. You might have met her husband, Todd, and daughters, Anna and Zoë, at a variety of Wissahickon Trails events. She keeps her cats at home, Edward, Jasper, Jake and Tito, but loves to share them on social media. 

  • Samantha Douglas

    Development Manager

    Samantha has joined the team as the Development Manager – Donor Stewardship. She has served in Development for over 5 years, most of those taking place at Tryon Palace in New Bern, NC. Samantha works for Wissahickon Trails because she has a lifelong appreciation for natural beauty and enjoying the water.

    Samantha calls the Southern Outer Banks of NC home, where she was always at the beach. "Water and people" are not just a slogan, it’s how she was raised. You can most likely find her on the trails with her family, or at home watching “The Office”- again.

Engagement Department
  • Jenn Bilger

    Engagement Director

    Jenn works with her team to deliver many of Wissahickon Trails’ community engagement initiatives, from education programs to community partnerships to public events. She loves being outside in nature and connecting people to their natural spaces. After realizing she really loves working with people outdoors, she earned her Master’s degree in Environmental Education at the University of New Hampshire.  

    Jenn grew up in New Hampshire and currently lives in Newtown, PA with her husband David and young son Ryan. She’s an avid cook who loves hiking, kayaking, and adventure seeking. Jenn is known for her signature laugh and her lifelong favorite bird is the Common Loon (a bird that also laughs a lot). 

  • Kristy Morley

    Senior Naturalist

    A lifelong resident of the Delaware Valley (if you don’t count the two years in Minnesota), Kristy grew up with Herrontown Woods as her backyard, fostering an early love of nature and the outdoors. An extreme bird nerd and avid photographer, Kristy enjoys helping people to understand how everything is connected in the natural world. Kristy is the Christmas Bird Count Compiler for the Wyncote Audubon Society’s circle and serves on the Advisory Committee for City Nature Challenge.   

    In her down time, Kristy can be found studying field guides for her next birding adventure, reading, enjoying old movies with her wife or playing with their dogs Oliver and Henry.

  • Erin Landis

    Water Programs Manager

    Erin works on efforts to improve water quality and connect people to their local streams! She has lived in the Wissahickon watershed almost her whole life, and has always loved exploring the outdoors. After graduating with a Bachelor’s degree in Environmental Science, she worked in environmental remediation and watershed protection and also got involved in her local community’s Environmental Advisory Council before joining Wissahickon.

    Erin can usually be found outside, whether it’s hiking, camping (or even backpacking on ambitious weekends) or rock climbing! She loves good food (less so cooking it) and she can’t survive a day without chocolate.

  • Alex McWhorter

    Volunteer Coordinator

    Alex is our coordinator of volunteers - helping recruit, plan, and manage the efforts of our community members looking to help make an impact. From science programs to fund-raising events to land and water stewardship, Alex is the go-to for anyone interested in getting involved.

    After graduating with a journalism degree from the University of Georgia (Go Dawgs!), Alex spent nearly a decade in the media industry. But after living across the breadth of the west coast alongside his travel-nurse wife, he is now incorporating his love for the outdoors into a new career path. He is an avid hiker, biker, kayaker, rock climber, reader and writer – when his rambunctious dog, Boone, will allow. 

  • Suzanne Smith-Oscilowski

    Environmental Educator

    Suzanne built our environmental education program in partnership with local schools more than 10 years ago, and she has been educating students about their local environment ever since. She holds a Pennsylvania Teaching Certification and enjoys sharing the importance of watersheds and the natural world with students of all ages. Suzanne lives in the Wissahickon watershed and serves on the Lower Gwynedd Township Environmental Advisory Council as well as the Temple University Ambler Arboretum Board and the University Board of Visitors.    

    In her spare time she enjoys beekeeping, running, cycling, and walking the trails with her husband and dogs, Asta Mae and Dakota.

  • Steve Blubaugh

    Head Miller

    Steve oversees the stewardship of our Evans-Mumbower Mill. This includes everything from ensuring that the facility is maintained and operational to educating visitors of all ages.  Steve has had a lifelong interest in history and technology innovation. For nearly 25 years, he was a volunteer Miller’s Assistant and docent at the Mill, and recently retired from a career as an electronics technician. Steve loves interacting with visitors to the mill and hearing their impressions of the experience. He also enjoys his role as “super miller” for the education program.  

    In his free time, Steve is an avid reader and bicyclist and enjoys attending a variety of concerts with his wife and friends.

Conservation Department
  • John Ferro

    Conservation Director

    John oversees our work to protect open space and the health of the Wissahickon Creek, improve habitats and trails, and monitor wildlife communities.  He has been with Wissahickon Trails since 2008 and in that time has built strong relationships with partners and volunteers. John grew up close to the Wissahickon and spent his childhood around the creek. 

  • Margaret Rohde

    Conservation Manager

    Margaret plans and implements habitat and trail restoration and management, monitors conservation easements, and oversees the bird banding program. Margaret is an NABC Certified Bird Bander and serves on Wyncote Audubon's Board of Directors. Her love of the natural world led to a degree in Environmental Studies and after a few nomadic years working with birds in five different states, she joined Wissahickon Trails in 2015.  

    Margaret grew up in New Jersey, where she spent her days exploring the lakes and woods around her home. In her spare time, she’s usually birding, hiking, drawing, or carving spoons (donations of good carving wood welcome). 

  • Tom Voter

    Stewardship Assistant

    Tom joined the Conservation team in 2022 to assist with habitat restoration and trail management. Tom grew up in Upper Dublin where he cemented his love for nature exploring around the Wissahickon Creek.  He went on to earn a Bachelor's degree in Environmental Science from Temple University and is excited to pursue a career where he can get others excited about nature. Tom lives with one cat in Philadelphia where he enjoys birding, biking, mountain biking, volunteering and anything else outdoors. His favorite bird is a turkey vulture!

General Administration
  • Michaelle Fleisher

    Finance & Human Resources Director

    Michaelle (pronounced ‘Michelle’) believes that giving back to your community is a priority and feels so lucky that she can work for Wissahickon Trails.  She is a longtime volunteer at the Ambler YMCA and is currently the Chair of their Board of Managers. She recently joined the Board at the Wissahickon Valley Public Library.  

    She and her husband love art, hiking, gardens and travel. She is accompanied almost everywhere by her yellow lab Nellie, or maybe it’s the other way around!

  • Madalyn Neff

    Communications Specialist

    Madalyn enjoys connecting with the community to share the mission and work of Wissahickon Trails. She is responsible for the website, social media, and all print and digital communications. She grew up in central Pennsylvania, where she took wooded areas and open space for granted. While attending Temple University, she discovered she could have a career that merged her passion for communicating with environmental conservation.  

    She enjoys eating breakfast for dinner, meeting new dogs, planning day-hikes, rereading Harry Potter, and traveling with her partner. 

Office Dogs
  • Henry Morley

    Director of Underdogs

    Loves cuddles and treats. Afraid of thunder.

  • Nellie Fleisher

    Chief Greeting Officer

    Loves to meet you, make you feel welcome, shed on you, chase a ball and is very nosy. 

  • Oliver Morley

    Squeaky Toy Coordinator

    Loves walks on the trails, tennis balls and de-stuffing toys.

Board of Directors

  • Kristen Haugen


  • Wendy Weirman

    Vice Chair

  • Keith Eby


  • Mary S. Claghorn


  • Suzanne Bush

  • Duane D. Deaner

  • Darrell Gunter

  • Kate Harper

  • Sara Hertz

  • Patrick Hitchens

  • Brent Hooker

  • Pete Hoskins

  • Nancy B. Kreider

  • Ann Laughlin

  • Todd Outten

  • Mark Schafer

  • Kristian Smith

  • John Tierney

Emeritus Board

  • Hugh G. Moulton


  • Richard Collier, Jr.

  • George C. Corson, Jr.

  • Ellen T. Duncan

  • Cary B. Fleisher

  • Saly A. Glassman

  • Jim Hasson

  • Dolores E. Hillas

  • Timothy P. Hughes

  • Mark P. Letner

  • George M. Riter

  • Hugh A. A. Sargent

  • Jamie Stewart

  • Neil Trueblood

  • Cheryl L. Young