World War I Draft Registration Cards are on file at the National Archives and Records Administration in Washington DC. If a trip to Washington DC is out of the question, you can subscribe to Ancestry.com and read them any time. The copies are not the best but still readable. I searched for my grand-uncle Eugene Conrad Adam and my grandfather Willie Eugene Adam.
I have transcribed as much of the hazy blur as I could.
Eugene Conradt [sic] Adam; from Boerne, Texas; age 20; born June 1, 1898; white; farmer; employed by Julius Adam, Boerne, Texas; next of kin Julius Adam, RFD #1, Boerne, TX, he signed his name as Eugene Conrad Adams; medium height; build ?; eyes blue; hair brown; Registered by Elmer Watts on Sept 12, 1918
Willie Eugene Adam; age 24; Boerne, Texas; Born March 23, 1893; natural-born citizen; place Boerne, Texas; Farmer; next of kin, Julius Adam, Boerne, TX; no children; single; caucasian; signed Willie E. Adam; Tall; Medium build; light blue eyes; Med. Brown Hair; H. O. Adler; Precinct #1, Kendall Co, Texas, June 5, 1917; Aug. Langbein