Hello, I am returning to my ancestor research and came across your post. My grandfather is Robert Ernest Sanders, so Lyle Leland Sanders is my Uncle. I have a letter that he wrote to me in 1977. Also have a post card with his Ham operator info on it.
I'm sure you must have a copy of the letter written by Joe Sanders. ( Uncle Lyle sent me a copy) It has a lot of interesting info along with a big mystery.
you can email me directly at: firstname.lastname@example.org