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Federal (USV)


Isaac Knettle Casey

(1844 - 1867)

Home State: Pennsylvania

Education: The College of New Jersey (Princeton)

Branch of Service: Staff

Unit: 2nd Division, 9th Corps

Before Antietam

Son of Congressman (1849-51) and judge Joseph Casey (1814-1879), in 1860 he was living with his parents in Harrisburg, PA. After a recommendation from Brigadier General Sturgis of 30 May 1862, he was appointed Captain and additional aide de camp (ADC) of Volunteers on 4 June 1862 and assigned to General Sturgis' staff.

On the Campaign

He was an aide-de-camp (ADC) to General Sturgis' on the campaign in Maryland and was at South Mountain on 14 September 1862, but was

separated from me [General Sturgis] after the battle of South Mountain by sickness and orders for other service, and could not join again in time to take part in the battle of Sharpsburg.

The rest of the War

He was slightly wounded at Fredericksburg, VA in December 1862. He was later on the staffs of Generals Silas Casey and Samuel P Carter, was honored by brevets to Major and Lieutenant Colonel in March 1865 for his war service, and mustered out on 2 February 1866.

After the War

He died of tuberculosis just over a year later, only 23 years old.

References & notes

His service from Heitman1 and Letters Received by the Commission Branch, Adjutant General's Office, USA 1863-1870, online via fold3. Maryland detail from the General's after-action Report. Personal details from the US Census of 1860 and a memorial in An Oration Commemorative of the Restoration of the Union (Princeton, 1867) [pdf online]. His gravesite is on Findagrave.


01/17/1844; Bloomfield, PA


03/05/1867; Washington, DC; burial in Oak Hill Cemetery, Washington, DC


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. 289  [AotW citation 28777]