There is no comprehensive list of the over four million men that fought in World War 1 from the United States.   Most of the records were lost in a fire at the National Archives Personnel Records Center in 1973.  https://en.wikipedia.org/wiki/National_Personnel_Records_Center_fire.

The following Veterans Search is an ongoing project that started from a compilation of veterans from the State of Indiana.  Details have been added from the Indiana State Library from interviews of the returning veterans.  The interviews constitute the veterans' stories of the WWVets website.  There are over 5,000 veterans from other states included 170,000 veterans are listed, four and a half million records still needed.

Any veteran information is welcome.  WWVets@gmail.com 

WW1  Veteran Search