Carman received the country's highest award for bravery during combat, the Medal of Honor, for his action during the Battle of Vicksburg in Mississippi on 22 May 1863.

[1][2][3] Poorly kept records by the United States Government incorrectly spell his name as Carmin / Carmen.

[4] Carman was involved in other battles including at "Shiloh, Holly Springs, Corinth, Chickasaw Bluffs, Post [of] Arkansas, Port Gibson [and] Champion Hills".

He also served a period of detached service aboard the Gunboat Chillicothe between 23 January 1863 and 18 April 1863.

Saved his regimental flag; also seized and threw a shell, with burning fuse, from among his comrades.