This profile is for all who served in the regiment. The regiment later became the 9th New York Heavy Artillery so profiles may be in both these categories. However, not everybody in the 138th ended up in the 9th, and not all in the 9th were part of the 138th. Nicknames: Second Auburn Regiment; Second Cayuga Regiment; Wayne County Regiment
Mustered in: September 8, 1862 Designated 9th regiment of heavy artillery: December 19, 1862
The following is taken from New York in the War of the Rebellion, 3rd ed. Frederick Phisterer. Albany: J. B. Lyon Company, 1912. This regiment, organized in August and September, 1862, was converted into a regiment of artillery, December 19, 1862, designated the 9th Artillery, under which title its record will be found.
The following is taken from The Union army: a history of military affairs in the loyal states, 1861-65 -- records of the regiments in the Union army -- cyclopedia of battles -- memoirs of commanders and soldiers. Madison, WI: Federal Pub. Co., 1908. volume II. One Hundred and Thirty-eighth Infantry.—This regiment, organized in the fall of 1862, was converted into a regiment of artillery in December. (See 9th Heavy Artillery.)