[JoeC]

The Official Web Site of the Trans-Am Series has the results pages from SCCA Pro Racing's archives in their original form. The pages have all racing percipients and I found Don Yenko listed on 5 of the 12 race pages. Don wasn't a highly sponsored racer but he was in there racing with the big boyz and managed two top ten finishes. I haven't found any pictures yet as most of the photos just show the big name teams. This is what the SCCA record shows.
May 11, Michigan International Speedway, Yenko, Camaro, 41st overall, DNF after 24 laps with engine bearing failure
May 30 Lime Rock Park, Yenko, Camaro, 21st overall, DNF after 68 laps
June 8 Mid-Ohio, Yenko, 1968 Camaro, 30th overall, DNF after 67 laps suspension failure
Aug 3 Mt. Tremblant (Canada), Yenko/Grossman, 7th overall completed 91laps
Aug 10 Watklens Glen NY, Yenko/Grossman, 8th overall