The town of Vassalboro was named for one of the proprietors of the Maine settlement, William Vassal (or Vassall), a descendant of one of the original patentees (and later deputy) of the Massachusetts Bay Colony, and a wealthy merchant who eventually became a controversial Loyalist [REF].
On March 2, 1770, William Vassall, one of Vassalboro's early proprietors, conveyed to his niece Mary Prescott of Nova Scotia Lot Number 5 in Vassalboro, one of the so-called "Proprietor's Lots" reserved for the town's founders [REF].