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A.D. Adams

A.D. Adams

Federal (USV)

Lieutenant Colonel

Alexander Duncan Adams

(1832 - 1872)

Home State: New York

Education: Hobart College (Geneva, NY)

Command Billet: Commanding Regiment

Branch of Service: Infantry

Unit: 27th New York Infantry


see his Battle Report

Before Antietam

Adams was resident of Lyons who was prewar lieutenant in Company A--Lyons Light Guard--of the 54th New York State Militia (NYSM). He had been an Engineer on the project to enlarge the Erie Canal, and teacher at the Union School in Lyons.

At the start of the War he helped raise a company in Wayne County and was appointed Captain, Company B, 27th Infantry at the unit's organization on 2 May 1861. He was promoted to Lieutenant Colonel after First Bull Run on 1 September 1861.

On the Campaign

He commanded the regiment as they led the assault on Crampton's Gap on 14 September, but was not significantly engaged at Antietam on the 17th.

The rest of the War

Adams was appointed Colonel on 4 October 1862 and led the regiment until the end of their term of service on 31 May 1863.

After the War

After his service, Adams returned to Lyons and became Principal of the Union School. He died of consumption (tuberculosis) in 1872, relatively young at 39 years, leaving a widow and daughter.

References & notes

Service dates from Maryniak1, additional details from Fairchild2. The photograph here from one in the MOLLUS - Massachusetts collection at the USA Army Military History Institute; see also an engraved portrait of Adams from that volume featured in a post on behind AotW.


12/25/1832; Lyons, NY


10/28/1872; Lyons, NY; burial in South Lyons Cemetery, Lyons, NY


1   Maryniak, Benedict R., N.Y.S. GAR Posts and their Namesakes, NYGenWeb Site of the Civil War, first accessed 01 May 2005, <>, Source page: "Wayne County"  [AotW citation 21]

2   Fairchild, C. B, History of the 27th Regiment N.Y. Vols., Binghamton (NY): Carl & Matthews, printers, 1888, pg. 242  [AotW citation 688]