Can add a few.
Shooters using LC Smith guns won the Grand American Handicap in 02', 06', 11', 19', 20', 27', 28', 33', and 35'.
G.W. Lorimer and W.E. Gordon took 1st and 2nd at the 1919 GAH.
Otto Newlin won the GAH in 1927, and Isaac Andrews won 1928.
Walter Beaver won the 1933 Grand American with a Specialty SBT.
Jordan Royall, using a Smith SBT, and Sam Vance with a DBT, were 1st and 2nd in the 1935 GAH.
Hall of Fame inductee Julius Petty, of Arkansas and his brother Paul
http://www.traphof.org/Inductees/Petty-Julius.html