Trying to find a great uncle, Grant Gee, in 1920. I found him in 1900, 1910, 1930. His family was staying with his brother in Galveston, Texas in 1920, so wondered if he could possibly have been in the army.

How do I find a listing for those who actually enlisted in the army around this time? His WWI registration date was 6-5-1917, listing his DOB as 12-28-1888.