Albert Arndt

He had military experience as an officer in the Prussian Army, and came to America after 1848. He enrolled 24 July 1861 in New York City, then age 40, and mustered as Captain, Company B, 1st Battalion New York Artillery on 12 August. He was promoted to Major of the Battalion on 20 August 1861.

"At sunset I received orders from Major-General McClellan in person to select places for our guns of position. They were posted next morning [September 16], under the direction of Lieutenant-Colonel Hays, commanding the Artillery Reserve, on the positions indicated-the long ridge on the eastern branch of the Antietam, overlooking the field of battle of the next day. Taft's, Langner's, Von Kleiser's, and Wever's batteries were placed on the ridge between the turnpike bridge and the house occupied as general headquarters (Pry's). The enemy soon opened upon them. The fire was promptly returned, and the enemy ceased his fire and withdrew his guns. In this cannonade Major Albert Arndt, commanding the First (German) Battalion New York Artillery, an experienced and excellent officer, was mortally wounded while personally directing one of his guns, and died on the 18th."
(Artillery Chief Henry Hunt's Report)

Service information from Phisterer.1 Details from the Proceedings of the Board of Aldermen (NYC, 22 Sept 1862). His gravesite is on Findagrave, which has his birth year as 1827.

c. 1821 in GERMANY

9/18/1862 Sharpsburg, MD; burial in Green-Wood Cemetery, Brooklyn, NY