From the book-"Waul's Texas Legion 1862-1865" by Robert A. Hasskarl and Capt Leif R Hasskarl

This is the only name [in this book!] that is phonetically similar to the spelling you provided.

John Laughlin, Pvt
Age 35, Farmewr
Blue eyes, sandy hair, light complexion, 5'9"
Enlisted at Liberty Co., in June 1862 by Capt Rigby for 3 years in Waul's Texas Legion, Co F
Captured at Vicksburg
Released on Jan. 3, 1865 by cdg Gen of Prisoners
Date of order on Dec. 22, 1864