Jot Barnett Stiles served during WWI "World War ONE"

On 18 May 1917 JOT filled out the Draft Registration in New Mexico, listed as TALL, Medium build, Brown eyes, black hair and was married, working for his father, a stock man in New Mexico. Jot was a SERGEANT and had been recommended for Officer Candidate School.

The 158th Infantry Regiment ("Bushmasters") is an infantry unit of the ARIZONA National Guard. The regiment has served abroad in World War I, World War II and Afghanistan.

https://en.wikipedia.org/wiki/158th_Infantry_Regiment_(United_States)

Find-a-Grave; https://www.findagrave.com/memorial/53273172/jot-barnett-stiles