7 PM  Reception, 7:30 PM LectureJoin us for a presentation on Brigadier-General Duportail at his headquarters during the Valley Forge encampment of 1777-78, the historic “Duportail House” (c.1740) in Chesterbrook.Within a year of his joining the Continental Army in November 1777, General Louis Le Begue Duportail, a French military engineer, had become a trusted aide …