I can add some info about Don's SCCA racing history.
For the 1968 season Don was A-Production National Champion of the Midwest (MW) division, scoring 51 points in his '68 427 Corvette roadster. He then went to the SCCA National Championship ARRC race at Riverside, where he came in 5th (Car #9). In this race he ran against Tony Delorenzo's '68 Vette (Car #4), who took 2nd. There are several very nice pictures of both of these cars/drivers during this ARRC race within the Dave Friedman collection at the Henry Ford collections website, including these two links, along with a link to this ARRC racing result:
Picture of Don's car:
https://www.thehenryford.org/collect...rtifact/427027
Picture of Tony's car:
https://www.thehenryford.org/collect...rtifact/426996
1968 ARRC Riverside Racing results:
http://www.virhistory.com/cars/arrc/scans/68-res-2.jpg
For the 1969 Season Don was again A-Production National Champion of the MW division in a 427 Corvette, and also went to the National Championship runoff ARRC race in Daytona (Car #91), where he took 2nd place in A-Production class.
1969 ARRC Daytona Racing results:
http://www.virhistory.com/cars/arrc/1969-res.htm
- Wade