How can I find WWII info on what Company and Division my grandfather was in?

How can I find WWII info on what Company? (A-B-C) or Division (infantry?) my grandfather was in?

On Musters of 4-30-1939,  it's Company K, 29th Infantry. But 4 months later on Muster dated 8-31-1939, it says Co. B, 38th Infantry.

Most confusing is the Army - Army Air Corp division & "searches" and he actually retired from the military at Vance Air Force Base, so he's shown as the Air Force also.

So many moving variables.

I want to see if I can possibly pinpoint him overseas - Normandy, Northern France, Rhineland, Ardennes & Central Europe (which I know from his medals he received) but I'm confused as to what search "words" to use to drill down to facts.

His name was Glenn Hardgrave, retired Master Sergeant and his Army serial No. was 06260307. 

Parents
  • Thank you so much! I pride myself as a "history slueth" since I work in a Trust Department and have to regularly research heirships / client family relationships. Yet, with my grandaddy, was hitting a brick wall. I submitted a record request to National Personnel Records Center in February and received a response in June 2019. The information was minimal and many lines redacted so all I've had was a list of rewards and codes with month & year on awarded medals and concluded Duty AFSC was zipcodes - Tinker AFB & Vance AFB. Maybe the book you suggested that I just orders may help decode other information.

    What a blessing to happen upon this group. Thank you so much for the "hints". Every clue helps!

    Angela

Reply
  • Thank you so much! I pride myself as a "history slueth" since I work in a Trust Department and have to regularly research heirships / client family relationships. Yet, with my grandaddy, was hitting a brick wall. I submitted a record request to National Personnel Records Center in February and received a response in June 2019. The information was minimal and many lines redacted so all I've had was a list of rewards and codes with month & year on awarded medals and concluded Duty AFSC was zipcodes - Tinker AFB & Vance AFB. Maybe the book you suggested that I just orders may help decode other information.

    What a blessing to happen upon this group. Thank you so much for the "hints". Every clue helps!

    Angela

Children
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