Jon, you always exceed my expectations and are simply amazing at identifying the important details, like the engine mechanic. Thank you very much for the help.
In addition to these photos, There was a couple '69 Firebirds--some good coverage identified as the Trans-Am Series Bridgehampton on June 22, 1969.
Many pages earlier there were mountains of pictures of very young Roger Penske doing his Zerex special in the early 60's, and young Sterling Moss as well.
Bochroch took LOTS of Gran Prix photos. Again, most of them very good.(but I know nothing of that era)
I can PM you some stuff I've come across in recent days if you'd like. (This goes out to anyone)
Thank you, Jon.