You're not out of line at all, Sherry. Great idea, I hope you get some help.
I do not remember your father-in-law, but I do remember one of the guys having a seizure in front of the hangar in July or August of 1968. Don't know if it was him or not. At the time, we all thought it was heat stroke, I think. Wait for Davey Silk to check in; he remembers everybody.
We have not found a roster for 1968 or 1969 as far as I know. We will eventually, I am sure.
Good luck.
Bob Kilpatrick