Riding Mechanics - L-R
| Mechanic | Nationality | Years Active |
| Dennis Laflamme | USA | 1909 |
| Vern Lake | USA | 1932-33, 35-36 |
|
Robert Laly |
FRA | 1914, 19 |
| Clarence Lambkin | USA | 1915 |
| L. Landgraf | USA | ?? |
| Hubert Lang | USA | 1932 |
| Fred Langdon | USA | ?? |
|
Casey Lanham |
USA | 1932-34 |
| Frank Larcher | USA | 1909 |
| Ray Latham | USA | 1911 |
|
Clyde Latta |
USA | 1916 |
| H. A. Lawrence | USA | 1919 |
| R. H. Lawrence | USA | 1915 |
| William Lawrence | USA | 1919 |
| Theodore Le Du | FRA | 1920-22 |
| Jules LeBone | USA | ?? |
|
Louis LeCocq |
USA | 1914-15, 17 |
|
Frank Lee |
USA | 1909-11 |
| James Lee | USA | 1919 |
| F. B. Leightner | USA | 1915 |
| R. C. Leisaw | USA | 1912-13 |
| Paul Levan | USA | 1937 |
| Dave Lewis | USA | 1911, 15 |
| Marble Lewis | USA | ?? |
| Louis Lindenstruth | USA | 1911 |
| Owen Linthwaite | USA | 1915 |
| A. G. Linz | USA | 1909 |
| Charles Liphardt | USA | 1917 |
| Elmer Lombard | USA | 1933 |
| Ernest Longchamps | CAN | 1915-16 |
| Arturo Longo | USA | 1932 |
| S. Lounsberry | USA | ?? |
| J. C. Love | USA | 1914 |
| Jimmy Lowden | USA | 1933, 36-37 |
| Louis Luddiman | USA | 1916 |
| Bert Lustig | USA | 1931, 34 |
| Dick Lynch | USA | ?? |
| Leigh Lynch | USA | 1909 |
| Robert Lyne | USA | 1909 |
| C. Lyon | USA | ?? |
| Henry Machren | USA | 1909 |
| Ed Madden | USA | 1911 |
| Billy Mallar | USA | 1932 |
| Malone | USA | 1912 |
| Joseph Mande | USA | 1911 |
| Fred Mangold | USA | 1937 |
| F. Manville | USA | ?? |
| Charles Marant | USA | 1932-34 |
| Jean Marcenac | FRA | 1920, 22 |
| Bob Marchon | USA | ?? |
| F. E. Marquette | USA | 1916 |
| Buddy Marr | USA | 1917 |
| Paul Marshall | USA | 1930 |
| C. D. Martin | USA | 1909 |
| G. Martin | USA | 1909 |
|
Harry Martin |
USA | 1910-13 |
| Roy Martin | USA | 1931 |
| C. Mason | USA | 1910 |
|
Spider Matlock |
USA | 1930-34, 36 |
| Mattheys | USA | 1914 |
| J. C. Maxwell | USA | ?? |
| William Maxwell | USA | 1911 |
| Eddie May | USA | ?? |
| Kermit Maynard | USA | 1933 |
| James McAllister | USA | 1916, 19, 22 |
| Don McArthur | USA | 1931 |
| C. H. McBride | USA | 1919 |
| Fred McCarthy | USA | 1915-16 |
| James McCauley | USA | 1909 |
| Ed McClure | USA | 1934 |
| H. E. McCord | USA | 1915 |
| J. J. McCoy | USA | 1911 |
| Pete McDonald | USA | 1931 |
| Johnny McDowell | USA | 1937 |
| Harry McGrath | USA | 1916, 19 |
| Vic McGraw | USA | 1915 |
| H. E. McGuire | USA | 1917, 19 |
| Walter McHenry | USA | 1915 |
| Harry McKay | USA | 1916 |
| Herschell McKee | USA | 1919, 21-22, 32-37 |
| W. F. McMullen | USA | 1916 |
|
Jim McNamara |
USA | 1912-13 |
| Jay McNay | USA | 1911 |
| Art McPherson | USA | 1934 |
| William McQueen | USA | ?? |
| William Merrill | USA | 1911 |
| Eddie Metzler | USA | 1936-37 |
| Charles Meyer | USA | 1936 |
| Eddie Meyer | USA | 1934, 36 |
| Harry Meyer | USA | 1937 |
| Walt Meyers | USA | 1934-35 |
| Milton Michaelis | USA | 1913 |
| Al Miller | USA | 1931 |
| Arno Miller | USA | ?? |
| Bud Miller | USA | 1934 |
| C. W. Miller | USA | 1911 |
| Charles Miller | USA | 1910 |
| Eddie Miller | USA | 1911, 16-17, 19-20 |
| H. P. Miller | USA | 1917 |
| L. H. Miller | USA | 1931-32 |
| Lou Miller | USA | 1930 |
| Louis Miller | USA | 1937 |
| Paul Miller | USA | 1930 |
| Miltvitch | USA | 1912 |
| Albert Mitchell | USA | ?? |
| Walter Mitchell | USA | 1932-33 |
| Jimmy Mitney | USA | ?? |
| Nick Molinairo | USA | 1919 |
| Henry Moller | USA | 1914 |
| Wilmer Monahon | USA | 1917 |
| George Montgomery | USA | ?? |
| Joe Moody | USA | 1916 |
| Robert Moore | USA | 1913, 15-16 |
| Mike Moosie | USA | 1916 |
| Charles Moran | USA | 1932 |
| L. F. Moran | USA | ?? |
| Jules Moriceau | FRA | 1919 |
| Sam Morris | USA | 1914 |
| W. T. Morton | USA | ?? |
| Phil Moulton | USA | 1930 |
| William Moulton | USA | 1931 |
| E. H. Muehlforth | USA | 1935 |
| Allen Mulford | USA | 1922 |
| Ethel Mulford | USA | 1910 |
| Robert Muller | USA | 1909 |
| Tom Mulligan | GBR | ?? |
|
Jimmy Murphy |
USA | 1916-17, 19 |
| Nauber | USA | 1914 |
| Charles Nauber | USA | 1909-10 |
|
Joe Nelson |
USA | 1909 |
| John Nelson | USA | 1921 |
| Steve Nemesh | USA | 1922 |
| Russ Newberry | USA | ?? |
| Barney Newgard | USA | 1916-17 |
| Claude Newhouse | USA | 1913-14 |
| Fred Newman | USA | 1919 |
| Roy Newton | USA | 1916 |
| Jack Nichof | USA | 1917 |
|
Alfred Nielsen |
USA | 1920-22 |
| Kenneth Nikrent | USA | 1915 |
| L. B. Nottingham | USA | 1910 |
| Henri North | USA | 1917, 20 |
| O'Brien | USA | 1912 |
| Bill O'Brien | USA | ?? |
| Frank O'Brien | USA | 1911 |
| Peter O'Brien | USA | 1917 |
| Fred O'Burn | USA | 1911 |
| Eddie O'Donnell | USA | 1913-14 |
|
Ernie Olsen |
USA | 1917, 19-22 |
| Albert Opalko | USA | 1934-35, 37 |
| Cowboy O'Rourke | USA | ?? |
| C. F. Osgood | USA | 1910 |
| Swan Ostewig | NOR | 1916 |
| Gus Overbeck | USA | 1911 |
| Roy Painter | USA | 1930 |
| Emeret Pala | USA | 1916 |
| Palmer | USA | 1912 |
| Roxie Palotti | USA | 1916 |
| Joe Parkin, Sr. | GBR | 1909 |
| Romeo Parenti | USA | 1934-37 |
| C. L. Parson | USA | 1931 |
| Bob Patterson | USA | 1930 |
| Johnny Pawl | USA | 1935-37 |
| Joe Pazzo | USA | 1909 |
| John Peck | USA | 1937 |
| Pence | USA | 1915 |
| Lloyd Percival | USA | 1909 |
| Bill Periard | USA | 1935 |
| O. E. Petersohn | USA | 1911 |
| Kelly Petillo | USA | 1930 |
| Jack Petty | USA | 1934, 36-37 |
| William Pfieffer | USA | 1911 |
| Fred Pfister | USA | 1911 |
| C. Phillips | USA | 1915 |
| Chris Pickup | USA | 1922 |
| Louis Piel | USA | 1915 |
| R. A. Pilleverdier | USA | ?? |
| G. Poirier | USA | 1909 |
| Earl Pollard | USA | ?? |
| Thomas Porter | USA | ?? |
| Fred Post | USA | 1937 |
| James Powers | USA | 1915 |
| William Pozzo | ITA | 1911-12 |
| Charles Priday | USA | 1916 |
| Jimmy Prock | USA | 1930-33 |
|
Eddie Pullen |
USA | 1911, 12 |
| George Puterbaugh | USA | 1914 |
| Clarence Quicksall | USA | 1916 |
| Bob Quinn | USA | 1933 |
| F. L. Radford | USA | 1914 |
| Fred Radina | USA | 1911 |
| Johnny Rae | USA | 1934 |
| L. B. Randall | USA | 1910-11 |
| Ed Rathburn | USA | ?? |
| L. C. Raynor | USA | 1917 |
| Emmett Read | USA | 1919 |
| George Read | USA | 1930 |
| W. G. Rees | USA | 1911 |
| Oscar Reeves | USA | 1935 |
| John Reider | USA | 1911-12 |
| Fernand Renard | FRA | 1920 |
| P. Renden | USA | 1915 |
| Alice Reynolds | USA | 1909 |
| Paul Rice | USA | 1930-31 |
| A. G. Richards | USA | 1909 |
| Harry Richards | USA | 1909 |
| William Richards | USA | 1930-31 |
| Gene Richardson | USA | ?? |
| W. G. Richardson | USA | 1919 |
| William Richardson | USA | ?? |
| H. N. Richey | USA | 1911 |
| Eddie Rickenbacker | USA | 1915 |
| Gordon Rintaul | USA | 1934 |
| Carl Riscigno | USA | 1931-33, 35-36 |
| Joe Ritchie | USA | ?? |
| J. Robinson | USA | 1909 |
| Joe Robinson | USA | 1909 |
| Jim Rochfort | USA | 1909 |
| Johnny Rogers | USA | 1935 |
| M. C. Rogers | USA | 1914 |
| Robert Rold | USA | 1915 |
| Raymond Rollman | USA | 1914 |
| William Rollston | USA | 1911 |
| A. Rominguiere | FRA | 1919 |
| Maurice Ronco | USA | 1915-16 |
| Tom Rooney | USA | 1914-15 |
| M. E. Rosch | USA | 1915 |
| Harry Rose | USA | 1915 |
| Jimmy Rossi | ITA | 1930 |
| C. L. Roush | USA | 1916 |
| Albert Ruddle | USA | 1909 |
| Bill Ruff | USA | 1934 |
| J. Rutner | USA | ?? |
Riding mechanics of undetermined birth place are assumed
to be American
?? - This person is known to have been a riding
mechanic, but I do not know specifically which race or races he rode in.
Race Winner