(This is an xpost from /r/history but I felt like it was more appropriate on this sub. This is my 3rd attempt at a response.)
Over the last three years or so, I have been working to track down information about my grandfather's service in World War 2. He never spoke much about it until I was a teenager and he suddenly opened up to me. At the time, I had no idea how important that conversation would be and I didn't take any notes. He died within a year, and for the last 14 years I have been piecing together my memories with other family members' stories in order to form a picture of his war years.
Last year, I hired a professional researcher who went through the US Army archives in St. Louis. Based on his search, I confirmed what I knew about Grandpa's service in the European Theater with the 508th Military Police Battalion (he then came home with the 512th), but I also discovered he had been with the 745th MP Bn. in Hawaii before that (from July 1942 - December 1943). I have scoured the internet and library resources and found scant evidence of the 745th (most searches bring up the 745th Tank Bn. or more modern exploits of the 745th MP).
I know his company was based at Schofield Barracks on Oahu (family stories, confirmed by the researcher) and that they spent most of their time guarding an ammunition stockpile on the island. I also found online remnants of a sale on Ebay in 2007 of a 745th MP Bn. Christmas party photo album here. I have been unable to track down the purchaser of that album. Basically, I'm wondering if anyone here has any knowledge of or resources for the 745th Military Police Battalion in Hawaii from 1942-1944? I know that is a hyper-specific topic, but with the hivemind of Reddit, you never know! Thanks in advance.