Martin Armstrong, 81St, Ohio, Infantry.

Martin Armstrong.

Birth: unknown.
Death: Apr. 6, 1862, Shiloh, Hardin County, Tennessee.

Enlisted as a Captain on 30 August 1861; Commissioned into Co B, 81st Ohio on 19 September 1861; Killed on 6 April 1862 at Shiloh, TN;

Buried in Shiloh National Cemetery, Pittsburg Landing, TN Burial: Shiloh National Military Park, Shiloh, Hardin County, Tennessee.

From the 81st., Ohio Regimental History. 

General Grant ordered the regiment back to the main lines. As this movement was be gun the enemy opened again with grape and canister, and just us Captain Martin Armstrong, who commanded the right company, gave the command, " by file right, march!" a grape shot struck him in the head and killed him instantly. His Orderly Sergeant caught him in his arms and bore him from the field. 

Update November 15, 2013.

The following information is given by Mark Hill.

Martin was born 22 Feb 1833. His father was Brigadier General of Ohio Militia William Armstrong, living in Lima township, Allen County Ohio. Martin's uncle, John Armstrong was a Major General living in New Lisbon, Columbiana County Ohio, and another uncle was Col. Martin Armstrong who, at one time, was a member of Daniel Harbaugh's Company of Light Dragoons.