Sandown selectmen are threatening to evict the Sandown Historical Society and its belongings from the town-owned train depot museum on Dec. 4 if the nonprofit doesn’t elect local residents to serve as officers on its executive board.

A dispute over the makeup of the board, which currently has no members from Sandown, has irked selectmen and recently prompted them to set Nov. 20 as the date of eviction if things didn’t change.