(1837 - 1898)
Home State: Maryland
Branch of Service: Artillery
He was a clerk in Washington, DC, living with his parents at the 1860 Federal Census. He was appointed 2nd Lieutenant, Company K, 1st US Artillery on 1 May 1861, and promoted to First Lieutenant on 14 May 1861.
On the Campaign
He served with his Battery on the Maryland Campaign, and was cited by Captain Graham in his after-action Report, in which he noted: "Lieutenant Maynadier returned with First Sergeant Cooney and brought off the two caissons, under a heavy artillery fire."
The rest of the War
He was promoted to Captain on 4 June 1864, by which time he was serving as Commissary of Subsistence, 2nd Brigade, US Horse Artillery. He was captured in action at Reams Station, VA in August 1864.
After the War
Cited by Brevets to Captain in 1862 for action at Antietam and Major in 1865 for War service, he mustered out of the Battery on 8 December 1870. He returned to Regular Army service, appointed Major and Paymaster, USA on 26 April 1875. He retired on 26 September 1895.
References & notes
Service dates from Heitman1. His picture from an 1862 Alexander Gardner photograph offered for sale (2015) by Horse Soldier Antiques. A copy is also in the collection (RG98s-Civil War Photos 39.29) of the US Army Heritage and Education Center, Carlisle, PA. His gravesite on Findagrave. Further detail from family genealogists. His father, also William Murray Maynadier (1807-1871), was a career Army Officer in the Ordnance Department, West Point Class of 1827. He had been assistant to the Chief for most of his career.
01/07/1837 in MD
06/19/1898 Ashland County, WI; burial in Arlington National Cemetery, Arlington, VA