Thanks! I appreciate that. I honestly know nothing about G. Leonard Phelps other than the name and the no. 538, but you’re right he has to have been someone who knew about armaments to distinguish the torpedo from a bomb. Initially I wondered if perhaps he was in the airforce (british or American), but I can’t find records confirming this. Then another thought crossed my mind, what if G. Leonard Phelps was not the one who collected the contents of that envelope? Thats a possibility too. But I feel like the more I find out about this torpedo, the more I can narrow down my search. I am also still mulling this over and looking over various resources, I’ll let you know what I find.