Board Members

Tobias Glidden, Executive Chairman

Tobias is a native Nantucketer whose family has been here for several generations. Many know Tobias from his service as the youngest-ever elected member of the Nantucket Select Board. He now owns and operates two businesses, including ACKSmart, a solar installation firm, and Wheels of Delight, a solar-powered electric bike rental company. Tobias is passionate about making a positive difference to create a sustainable life for Nantucket’s community. He loves sailing, shellfishing, and working in his garden.

Peter McCausland, Founding Board Member

Peter is a 50-year summer resident on Nantucket who has a deep and abiding respect for the island and its community. He is the retired founder and CEO of Airgas, Inc., the world’s largest supplier of packaged industrial, medical and specialty gases. Peter received an undergraduate degree from the University of South Carolina and a Law degree from Boston University, where he was part of the first environmental law class. He and his wife Bonnie live in Hobe Sound, Florida, and spend several months on Nantucket. They have two adult children, Chris and Elizabeth. Peter has a passion for sailing and has been a supporter and advocate for Nantucket for many years.

Kelly Steffen

Kelly oversees inventory and operations at the Nantucket Food Pantry, an arm of Nantucket Food Fuel and Rental Assistance (NFFRA).  Kelly has a record of building meaningful relationships in Nantucket that are grounded in a shared vision of an equitable and sustainable future for the island.  Raised between New England and Thailand, Kelly earned his undergraduate degree in Community and International Development from the University of Vermont. He and his family have been a part of the Nantucket community for the past twenty years.  He is driven by a passion for finding commonalities through patience, persistence and purpose.

Linda Holland

Linda’s involvement on Nantucket began in the public schools as an art teacher. She also played a critical role in directing the Nantucket Girls Club, which later became the Nantucket Boys and Girls Club. Linda brings decades of experience in protecting Nantucket’s natural resources. After five years on the Planning Board, she stepped in as the Executive Director of the Nantucket Land Council, where she organized and mapped the first Wellhead Protection Area in the U.S. In 1998. She was given the Governor’s Award for Open Space Protection for her instrumental role in helping to place land in permanent open space. She became Linda Loring’s Land Protection Campaign Manager before retiring to her home in Sconset. In addition to being a strong advocate for the environment, having served on the committee that created Covenant Houses, Linda also focuses her efforts on housing initiatives for year-round residents. She is devoted to and energized by protecting Nantucket in all its wonders.


Julia Lindner, Executive Director

Julia comes to ACK•Now with a background in municipal government, corporate finance, and fact-based decision-making. More recently, she worked for the Town of Nantucket, overseeing operating and capital budgets, and served as the business manager for Community Data Platforms, a government-focused data analytics company born on Nantucket. 

Susan Coffin, Director of Development

Susan and her husband Toby moved year-round in 2018 from Manchester by the Sea, MA. Having both been raised in coastal communities, Nantucket was a natural fit for their lifestyle.

Susan has worked as a Development Professional for over two decades, managing multiple capital campaigns and fundraising initiatives. Before joining ACK•Now, Susan worked as the Director of Development for the Nantucket Conservation Foundation.