From 1964 to 1966, Mr. and Mrs. Pennypacker,  Mrs. Poe, and Princeton University made available  a total of about 101 acres for public open space and passive recreation to Princeton Township. This became the core of Woodfield Reservation.

Over the years, other parcels have been added. In 1974, Mrs. Poe donated the parking lot on the Great Road. In 1980, Mr. and Mrs. Kerr gave 2 acres in the NE corner and an easement to Drakes Corner Road. In 1993, Lanwin Development added a 2- and 8-acre parcel in the NW area.

In January 1994, when Mrs. Poe passed away, the lower fifty acres reverted to her estate and so came available for sale. Neighboring Tenacre Foundation, Friends of Princeton Open Space, and other organizations and individuals, donated funds and time to enable the Township to acquire this important part of Woodfield Reservation. In 1998, members of The Demenil Trust added an 8-acre lot that included Tent Rock.

Through the generosity of community members over the years, as well as through help from the Township and State Greenacres Funding, Woodfield will remain in the public trust to be available in perpetuity for all in the community to enjoy.