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W.N. Dennison
W.N. Dennison

Federal (USA)


William Neil Dennison

(1841 - 1904)
Home State: Ohio
Branch of Service: Artillery
Unit: 2nd United States Artillery, Battery A


Before the Antietam Campaign:
Son of Ohio Governor (1860-62) and US Postmaster (1864-66) William Dennison, Jr., he was commissioned 2nd Lieutenant, 2nd US Artillery on 5 August 1861, and promoted to First Lieutenant on 12 November 1861.

In the Antietam Campaign:
He commanded one of the sections of the battery in Maryland. He is mentioned by Captain Tidball in his after-action Report.

The remainder of the War:
He was honored by brevets (6 July 1864) to Captain for Antietam and Major for Gaines Mill and Malvern Hill. He commanded Battery G from November 1863 to June 1864, then returned to Battery A, commanding it into February 1865. He received a third brevet (15 March 1865) to Lieutenant Colonel, for War service.

After the War:
He continued in US Army service and was promoted to Captain on 3 January 1867. He was discharged 31 December 1870 at his own request. He lived in Columbus, OH and was later district attorney in Denver, CO, with a reputation for shady dealing, having possibly abandoned his wife and 4 children back in Ohio.

References, Sources, and other notes:
Basic service information from Heitman1. His photograph from one in the MOLLUS Massachusetts album2. Command details from W.A. Simpson's Second Regiment of Artillery (1900) [via USAMHI].

More on the Web:
He's seen also in a James F. Gibson photo taken earlier in 1862, at Gaines Mill, here. His gravesite is on Findagrave.

Birth Date: 12/10/1841    Place of Birth: Cincinnati, OH    
Death Date: 12/31/1904    Death Place: Columbus, OH    Burial Place: Green Lawn Cemetery, Columbus, OH


1   Heitman, Francis Bernard, Historical Register and Dictionary of the United States Army 1789-1903, 2 volumes, Washington DC: US Government Printing Office, 1903, Vol. 1, pg. 367  [AotW citation 14659]

2   US Army, Military History Institute (USAMHI), Military Order of the Loyal Legion of the United States (MOLLUS)-Massachusetts Photograph Collection, Published 2009, <http://cdm16635.contentdm.oclc.org/cdm/search/collection/p16635coll12/>, Source page: Vol. 98, pg. 5030  [AotW citation 14660]

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