Veterans Affairs Master Index has very little available.
"1st Lt 25 F A"
"United States, Veterans Administration Master Index, 1917-1940," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:WW22-9TW2 : 26 October 2019), Kent Shelton Whitford, ; citing Military Service, NARA microfilm publication 76193916 (St. Louis: National Archives and Records Administration, 1985), various roll numbers.