Arthur D. was killed at the battle of Antietam; George B. Ely was wounded at Antietam (September 2 per the roster).

The evidence

• “Emery M., Jan. 22, 1838; Arthur D., born May 11, 1842, (was killed at the battle of Antietam Sept. 17, 1862 ; he was the first young man who ofiered his services as a soldier in Milton; enlisted in April, 1861, in Co. H, 2d W.”

  1879-history-of-rock-county/25-bios-milton.md, PDF p. 820 / book p. 824

  Butterfield, C. W., et al. The History of Rock County, Wisconsin: its early settlement, growth, development, resources, etc. Chicago: Western Historical Company, 1879. Cornell University Library via the Internet Archive, archive.org/details/cu31924028871585.

  Grade A: Found on a page of one of our sources