The Trustees of Reservations have purchased 36 acres in historic North Easton that was once the site of a home owned by of Oliver Ames, the state’s 35th governor. The estate features sweeping lawns, an elegant 19th-century stone stable, an agricultural field, meadows, a brook and garden pond. The Ames family sold the property for $2 million to the conservation organization, which secured about $1 million toward the purchase from Easton’s community preservation fund and a state grant. The trustees will own and manage the property for the public’s enjoyment. The public will get an opportunity to weigh in on use of the newly acquired land during upcoming discussions hosted by the trustees. Suggestions can also be e-mailed to amescommunitypark@ttor.org.   As the process gets underway, the property will be open for passive recreation from dawn to dusk.