Union Document Signed by Bvt Major John William Roder of Calef's battery who fired the first artillery piece at the Battle of Gettysburg.  John William RoderResidence was not listed; Enlisted on 3/30/1855 as a Private.On 3/30/1855 he mustered into US Army Batty H 2nd Light Artillery He was transferred out on 12/13/1862On 12/13/1862 he transferred into US Army Batty K 4th Light Artillery (date and method of discharge not given) (Subsequent service in US Army until his death)Promotions:* Corpl * Sergt * 1st Sergt * 2nd Lieut 10/22/1862 * 1st Lieut 7/11/1864 * Capt 10/27/1864 by Brevet (Boydton Plank Road, VA)* Adjutant 3/7/1865 * Major 4/6/1865 by Brevet (Sailor's Creek, VA)Other Information:born in Missouridied 8/14/1889