The Jason Russell House in Arlington will offer free outdoor tours through October 10. The house is a typical colonial farmhouse built circa 1740 and was the site of brutal fighting on April 19, 1775, during the British retreat from Concord and Lexington in which Jason Russell and eleven other colonial militia lost their lives.  Tours are offered each Sunday from 1:00-4:00 p.m. on a walk-in basis. The Jason Russell House is located at 7 Jason Street in Arlington.  For more information: visit https://arlingtonhistorical.org/visit/hours-and-admission/  or call 781-648-4300.