MASCDCS was founded in 1957 by Art Peck and King Moore who led the club until 1971. At the first meeting, everyone invited and present was proclaimed, “Members of the Board.” Everyone who joined after that date is titled, “Only a Vice President.”
In 1971, Austin (Austie) Clark and Bruce Wennerstrom took over MASCDCS leadership until Austie’s passing in 1991. Bruce and Genia Wennerstrom carried on the famed club until Genia left us in 2011. Bruce was the lone “Top Bastard” until his passing in 2015. In late 2015, the Wennerstrom children took over the leadership of the club until its sale to Hagerty in 2019. In 2023, ownership of the club reverted back to the Wennerstroms and it is currently being run by Jim Donick and an advisory board.
Past speakers and members of MASCDCS have included:
| Janet Guthrie | Oscar Koveleski | Tom duPont |
| Bobby Rahal | Walter Cronkite | Leigh & Leslie Keno |
| Syd Sylverman | Vince Sardi | Scott Atherton |
| Danny Sullivan | Briggs Cunningham | Reeves Callaway |
| Karl Ludvigsen | Butch Leitzinger | Bob Varsha |
| David Hobbs | Edsel Ford | Brian Vickers |
| William Jeanes | Bob Grossman | Bryan Herta |
| Jean Lindamood Jennings | Sam Posey | Dr. Fred Simeone |
| Brock Yates | Jim Haynes | Ray Evernham |
| Bob Sharp | Skip Barber | Dutch Mandel |
| Scott Sharp | Wayne Carini | Jay Signore |
| Jack Baldwin | Tommy Kendall | Ron Fellows |
| David E. Davis Jr. | Lee Holman | Ken Gross |
| John Fitch | Leigh Diffey | Michael Furman |
| Jaques Vaucher | Denise McLuggage | Bob Tullius |
| Luigi Chinetti | Judy Stropus | Rob Ida |
| Luigi (CoCo) Chinetti | Murray Smith | Miles Morris |
| Danny Panoz | Chuck Queener | Lance Miller |
| Andrew Frankel | Mike Spinelli | George Levy |