Board of Directors

The Horn Farm Board of Directors volunteer to serve as the governing body of the farm. They establish the mission and purpose, ensure adequate resources are available to accomplish the mission, and provide oversight of the farm’s operations.

Meetings are typically held on the third Monday of each month (except July) at 6 p.m. Meeting minutes are available upon request. If you are interested in learning more about committee or board service, please contact us!

Lauren Hayman – President, Development Chair

Lauren Hayman is an avid home gardener who lives in Dover with her husband Ryan, their children, and their dog. Lauren loves to share native plants, veggies, and gardening projects with friends and neighbors. In the summertime, you can catch her in the garden with her kiddos looking for caterpillars and eating sweet peppers and green beans.

At work, Lauren is a freelance copy writer and editor. She often works with the family business, Hayman Studio, to write video scripts and marketing material for local businesses. Her favorite work transforms complex processes and ideas into accessible language that empowers those who read it

Michael Barlett – Vice President

Michael has had a lifelong interest in organic gardening and experimenting with different growing methods. Since his summer working on an organic farm outside of Pittsburgh, Pa Michael has worked hard to garden organically and broaden his understanding of how we interact with the world around us.

While pursuing his undergraduate degree in International Studies at Washington and Jefferson College Michael had the opportunity to spend a year in rural Japan where an entirely different way of living with the land allowed him to learn about how ancient and modern cultures lived side by side in rural communities. Throughout his travels he has always taken time to learn about the rural communities and farming methods that locals use to adapt to their surroundings. Recently he has begun to experiment with breeding his own Dwarf Tomatoes to fit into his small garden and always trialing new varieties of fruits and vegetables.

Michael serves a the Operations Manager at Mauell Corporation.

David Dietz – 2nd Vice President

David Dietz has farmed in Hellam Township for most of his life. Growing up, he helped every summer on his parents’ truck patch farm, and he helped tend the roadside stand on the Lincoln Highway about a mile west of Wrightsville. Always interested in history, David earned a BSE in Social Studies from Millersville University in 1995, and spent several years teaching. Eventually, however, his love of the land drew him back to farming. In 2002, David started vending produce at York Central Market, where he continued until 2017.

A founding member of the Horn Farm board, David helped start the Community Gardens and the Incubator Farm Project. Currently employed as the produce and dairy manager at Lemon Street Market in Lancaster, David is now interested more than ever in the challenges faced by local small-scale agriculture in a globalized commodity-driven economy. He is thrilled to see the Horn Farm Center leading with a vision for regenerative practices, learning from and working with nature. David is happily married to Waldorf teacher extraordinaire, Rochelle Dietz, and they have a delightful teenaged son, Gabriel.

Ed Wilson-Secretary

Born and raised in Wrightsville and Hellam, Ed began his career studying anthropology at Franklin & Marshall College and the University of Michigan and working as a Regional Archaeologist for the Pennsylvania Historical and Museum Commission. After returning to graduate school for a Ph.D. in Social Systems Sciences from the University of Pennsylvania, he became a faculty member at SUNY Buffalo, where he taught courses in systems thinking and research methods to urban planning students. He has also worked at the Pew Charitable Trusts, where he helped establish that organization’s Planning and Evaluation department, and at 10,000 Friends of Pennsylvania, where he served as Vice President of Research and Interim President. For most of the past 25 years, he has worked as an independent consultant, conducting program evaluation and applied research for foundations, non-profits, and academic institutions. His consulting assignments have spanned such fields as environmental conservation, land use planning, sustainable agriculture, smart growth, planetary health, and transdisciplinary science. The common thread uniting all of his work has been a focus on interactions between people and their natural and built environments.

With deep family roots in south-central Pennsylvania, Ed is passionate about promoting healthy environments and vibrant communities in this unique region. He was a leader in early efforts to protect the Horn Farm as part of a larger movement to conserve farmland and promote sound land use in Hellam Township.

Aaron Gingrich – Treasurer

Some of Aaron’s fondest memories as a child were going barefoot through his family’s garden to pick fresh fruit for breakfast, or fresh vegetables and herbs for dinner. When not working, he now spends time with his own wife and kids in the garden, where he has grown dozens of varieties of produce. He and his family can also be found biking and hiking on local trails, and kayaking in the waterways. That passion for the outdoors, combined with a mantra of leaving things better than he found them, lead Aaron to the Horn Farm.

Born and raised in York, Aaron is a graduate of York Suburban High School. After completing his BA in Business Administration at Millersville University, he entered the financial services industry, and today, he is a Financial Advisor with Sides Wealth Management. He lives in York with his wife and three sons. His other hobbies include working with his hands, exploring the latest technology, and reading a good book.

David Freiberg – Nominating Committee Chairperson

David Freiberg’s lifelong interest in agriculture started in his early childhood years growing up playing and learning at his grandparent’s farm in Chester County. This interest was nurtured during adolescence as he worked in his parent’s garden and orchard.

David received his BA in Business Administration from Bowling Green University in 1976 and subsequently a MPIA in Public and International Affairs from the University of Pittsburgh in 1978. During these college years David’s interest in environmental issues and food policies, especially in developing countries, continued to grow. After leaving Pittsburgh, David started his own business related to his other great interest: history. His agricultural enthusiasm persisted and he completed a one year course in biodynamics at the Sunbridge Institute in New York in 1999. He went on to receive an associate degree of biodynamic at Emerson College in Forest Row, UK in 2004.

He has a small homestead where he has been able to practice biodynamics during the past 25 years. He has grown a variety of fruits and vegetables and raised various livestock including a Jersey cow, sheep and chickens. David’s other passions include travel, gastronomy, history, beekeeping, hiking, and his family.

Marcus Sheffer – Facilities Committee Chairperson

Marcus promotes the application of a living systems, regenerative approach to building projects. After 12 years at the Pennsylvania Energy Office, he founded Energy Opportunities in 1993 to provide technical consulting services on all manner of building energy issues, renewable energy systems, the environmental impacts of human enterprises. Marcus is also a partner in 7group, a multi-disciplinary team of professionals developing the capacity of your project and organization to affect how humans regenerate life through building.

Marcus is a LEED Fellow, an accredited LEED Project Reviewer, and a Living Future Accredited Professional. Volunteer activities have included leadership positions with the USGBC (LEED Steering Committee, LEED Technical Committee, LEED Market Advisory Committee and past Chair of the Energy & Atmosphere Technical Advisory Group), the Green Building Association of Central PA (Founding Board Chair) and the International Living Future Institute as a Living Building Challenge Ambassador. He co-authored The Integrative Design Guide to Green Building published by John Wiley & Sons in 2009 and was the primary author of The Pennsylvania Solar Manual published by the PA Department of Environmental Protection in 2006. Sheffer earned a Bachelor of Arts degree in Environmental Studies in 1981 and a Master of Science degree in Public Administration in 1986, both from Shippensburg University.

Cindy Pizziketti-Events Committee Chairperson

Cindy Pizziketti grew up on a pony farm in Chester County and moved to York around twenty years ago. Cindy earned her BSN at Jefferson University, and spent fifteen years as a nurse in pediatrics at The Bryn Mawr Hospital. Always dedicated to lifelong learning, her love of the land and drive to protect it led to her becoming a Master Watershed Steward with the Penn State Cooperative Extension. In 2021 she was awarded the Watershed Stewardship Award from the York County Conservation District and was the Lower Susquehanna Riverkeeper Volunteer of the year.

Cindy is currently helping Horn Farm to transition several acres of farmland into a multi-functional riparian buffer. She has planted 100’s of trees and is leading a corp of Riparian Rangers that will steward these new trees into a forest. Educating children has been her favorite part of her 1000 hours of work as a Master Watershed Steward because they are curious and open to new things. She recently installed a pair of rain gardens at her home in Springettsbury, where she lives with her husband Rob and their beloved pit bull terrier, Nora.

Kelly Dearman

Kelly Dearman is an independent strategy consultant with 16 years of strategy development, planning process design/execution and facilitation experience working with Boards and leadership of organizations with annual revenues ranging from $3 billion to $240,000.  Although Kelly works across nonprofit industries, she has a personal passion for land preservation, land stewardship, conservation, biodiversity and regenerative agriculture.  In addition to serving on the Board of the Horn Farm Center for Agricultural Education, Kelly serves on the Board of the Farm and Natural Lands Trust of York County.

When not working or serving, she volunteers her time with her church, at her kids’ school and at First Fruit Farm, a nonprofit, Christian ministry dedicated to providing fresh food for the hungry.

Tom Warman

Tom is a retired environmental consultant with a professional background in horticulture and landscaping. He spent his early years in Switzerland and Cincinnati OH and is a graduate of Gettysburg College.

Tom has always been interested in plants, having grown bonsai trees for several decades and consulting on wetlands before his retirement. He now spends his time playing guitar and repairing old electronics and musical instruments. Tom has served on many civic and nonprofit boards in the York area and is looking forward to his time on the HFC board.

Tom and his wife, Carolyn, live in Spring Garden Township. They have two grown children and three granddaughters.

Renee L. P. Evans

Renee attended Millersville University where she studied Special Education and Psychology. After marrying fellow artist Rob Evans, she began a notecard business. Her notecard art depicts birds, butterflies, fish and other images

 of the natural world. Her collections have been exhibited at the North Museum of Nature & Science in Lancaster, PA and her notecards have been sold at Lancaster Museum of Art and natural history museums along the east coast.

Renee also co-founded Sugar Mountain Workshops, a music and art camp that emphasized the natural world.  As her children grew, she taught more advanced art classes and continued to tutor art and math until her children, Lucas and Quinn, went to college. Renee has served on the board of the York Art Association and still serves on their hospitality committee. She also served on advisory boards for the Columbia Creative Factory and the Historic Hellam Preserve.

Renee’s interest in organic food and gardening began in 1995 with a modest garden and a small cooperative store that she ran in her basement called JUST ORGANICS – a community resource before such foods became more readily available locally. She is thrilled to bring her experience and dedication to community service to the board of the Horn Farm Center as her connections with the organization are deep – going all the way back to the Pizza Patch Project and the Tomato Festival!

Dave Yates

Born and raised in York, Pa., Dave Yates attended Thiel College with a major in psychology and double minors in art and geology. Yates began his career in the PHVAC trades in 1972 with F. W. Behler. After serving his apprenticeship and working up to Master Plumber status, Yates struck out on his own in 1979. In 1985, he purchased F.W. Behler Inc., a third-generation PHVAC firm. This company has won many awards for its work, and Yates, an award winner himself, was the first recipient of the international Carlson-Holohan Industry Award of Excellence. Yates was named one of the most influential contractors in plumbing, hydronic, and radiant industries in 2009 and again in 2014.

Besides running F.W. Behler Inc., writing articles for industry magazines and speaking at events, just recently at the AHR convention in Chicago, Yates is also one of the most experienced teachers in the hydronics industry. He has served as an adjunct professor and served on the Technical Advisory Board for the Thaddeus Stevens College of Technology. Yates taught an online radiant design course developed in partnership with the Radiant Professionals Alliance (RPA). Yates writes monthly columns for Plumbing & Mechanical, PM Engineer, and Supply House Times magazines and has written articles for Contractor Magazine, Green Mechanical Contractor, Radiant Living, Fine Home Building, and a handful of other trade magazines.

He is a past executive board member of the RPA, member of the Green Mechanical Council and served on the Radiant and Hydronics Council with ACCA. Yates currently helps to develop online training courses for mechanical contractors with Interplay Learning. Also serving as an expert witness in numerous jury trials. Yates served on the Central Market Board of directors for 14-years and served as president for 12-years. After reading about square foot gardening, Dave & Lois constructed six 4×4 raised beds where they grow vegetables every summer. No stranger to farming, Yates managed a 55-acre farm in the Brogue for several years, planted a 5-acre vineyard, and earned an associates degree in viticulture from Penn State.  

Carolyn (Carrie) Pugh

Carolyn, a York County native, brings a breadth of knowledge and experience to the Horn Farm Center board. Currently an attorney Bellomo & Associates, Carolyn has been in private practice since serving as the first judicial law clerk for the Honorable Joseph C. Adams in the York County Court of Common Pleas. She is experienced in family law, criminal defense, estate law, Social Security disability, bankruptcy, juvenile/school law, municipal law, and animal law.

Carolyn is passionate about animals. She obtained her undergraduate degree in animal science from Pennsylvania State University before she pursued her law degree at Dickinson School of Law. Carolyn also cares deeply about the York County community. Most recently, she was a Custody Conciliator and Court appointed Mediator for the County of York. She also served on the York County Parks Auxiliary Board and coordinated the York County High School Mock Trial Competition for several years. She is currently a member of the York County Bar Association and serves as the Editor of the York Legal Record.

Carolyn is very close to her large family – her parents, four brothers, three sisters-in-law, four nieces, and four nephews. She enjoys family gatherings and spending time with her menagerie of pets (her dog, Kip, her horse, Liam, and her three cats, Smoochie, Gus, and Bean). She loves to travel and spends several weeks a year at her family’s cabin on Moosehead Lake in Maine and motorcycle trips with her boyfriend, Aaron.