The Smithtown Historical Society will host a Model Train Show at the Frank Brush Barn, 211 East Main St., Smithtown on March 16 from 11 a.m. to 4 p.m. featuring layouts from Long Island HOTrack (HO Scale), Frank Kayz Trainz (surprise) and Trainville Hobby Depot (N Scale). Admission is $5, $3 for children ages 12 and under. Call 524-0529.