Donald Breton, at his Vassalboro home Wednesday, has produced a calendar that celebrates Vassalboro's 250th anniversary. He is shown with some of his research materials used to prepare the calendar, which costs $15.

Donald Breton, holds a historic postcard from 1908 that depicts the Chapel at Oak Grove Seminary in Vassalboro. Breton has produced a calendar that celebrates Vassalboro's 250th anniversary. The calendar is illustrated with historic postcards of Vassalboro including one of the chapel and other town landmarks. The calendar costs $15.

Donald Breton holds a historic postcard depicting Vassalboro Baptist Church while standing before the structure on Wednesday. Breton has produced a calendar that celebrates Vassalboro's 250th anniversary. The calendar, illustrated with historic postcards of Vassalboro landmarks, sells for $15.

Donald Breton stands before Oak Grove Chapel in Vassalboro on Wednesday. The longtime resident holds a calendar he produced to commemorate the town's 250th anniversary. The calendar is illustrated with historic postcards from town, including one of the chapel and other Vassalboro landmarks. Breton holds a copy of the calendar, which costs $15.

An early map of Vassalboro is showcased on the cover of a calendar celebrating the town's 250th anniversary. The calendar, illustrated with historic postcards of Vassalboro, costs $15.

Donald Breton, at his Vassalboro home Wednesday, has produced a calendar that celebrates Vassalboro's 250th anniversary. He is shown with some of his research materials used to prepare the calendar, which costs $15.