A horse and boy, in costume for a parade in celebration of Biddeford's tercentenary, September 16, 1916. The boy appears in a starred cone hat and stripped gown, seated on a type of small platform seat hitched to the horse. A decorated Bugbee and Brown Company wagon, headed in the opposite direction, is at right. Two onlookers stand near the head of the dressed-up horse. The was probably taken in the area of Elm Street and Mason Street.

Biddeford's initial European population resided in Biddeford Pool over the winter of 1616-1617, to prove that the area was habitable year-round. The first permanent colonists settled in 1630.