CIVIL WAR UNION MILITARY DOCTOR, WILLIAM AUSTIN GRIMM (KUTZTOWN, PA). Four-page autograph letter, dated March 7, 1864, Division Hospital, Pennsylvania Reserves, Bristoe Station, Virginia, to cousins in Topton, PA. Letter details specific conditions and circumstances of Grimm's practice on the battlefield. Black ink on stationery bearing blindstamp of boarding school attended by Grimm's sister. - Each page, 10 in. x 8 in. (one sheet folded). Estimate $150-250