My maternal Grandfather, Harry Leber, was a pilot and squadron commander before and during WWII. My mother and my aunt have several photo albums full of pics he took during these times. I took pictures of the pictures and will be sharing them here. I have dozens of photos to crop and fix then upload. I'll give you as much of the history as I know. He died six months before I was born so getting it directly is no longer possible.
Here's a taste. How many of you ever seen a Martin B-10 bomber? Harry trained on one of these before going on to the B-17. This was taken at Hamilton Air Field near San Rafael CA in 1937.