Seeking information about POW camps on Guam

I am doing research about the roughly 1,250 Japanese who were being held on Guam in POW camps at the end of World War II. I would like to know how many camps there were, how many POWs were in each one, and when they were finally closed. I know one of them was used to hold war crimes trials after the war, but I'm not sure which one. Frankly, any information would be appreciated.