[ Autographs ] Horace Porter 1837-1921 Union brevet brigadier generaland aide to U.S. Grant. Manuscript L.S. 3pp. 8vo., Bar Harbor, Aug. 1 1911 to a fellow general. Porter regretfully declines an invitation to attend a meeting of the Army of the Potomac veterans, citing his poor health. he adds: "..I assure you it is a great disappointment to me as our army reunions become more precious as the years roll by..."Folds, otherwise very good.