SCOTCH PLAINS -- The Osborn Cannonball House Museum, located at 1840 Front Street in Scotch Plains, will be open to the public on Sunday, June 7, 2026, from 2 pm to 4 pm, and on Friday, June 26, 2026, from 4:30 pm to 7:30 pm, during the celebration of “Revolution 250.” This celebration, sponsored by the Township of Scotch Plains, commemorates our country’s 250th anniversary.