Go to the link provided to me by ‘’Superfries’’. Your grandfathers serial number is the key to finding out who and what unit he served with— it’s the ‘’key to the kingdom’’ as it were.
I finally heard back after filing from the link that you mentioned. Unfortunately, my granddad’s records were part of the ones that were burned in a large fire in 1973. The letter that we got back stated that all of his records have been lost.