| 1 | Sam HANKS | Bardahl/Ed Walsh | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 2 | Jack McGRATH | Jack Hinkle | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 3 | Marshall TEAGUE | Hart Fullerton | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 5 | Paul RUSSO | Ansted Rotary/Hoosier Racing | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 6 | Art CROSS | Springfield Welding/Paoli | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 7 | Don FREELAND | Bob Estes | Phillips | ??? | Offenhauser | L4 4.5 | Firestone |
| 8 | Duke NALON | Novi Pure Oil/Lewis Welch | Kurtis Kraft | ??? | Novi | L8 c 3.0 | Firestone |
| 9 | Jimmy BRYAN | Dean Van Lines | Kuzma | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 10 | Tony BETTENHAUSEN | Mel Wiggers | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 12 | Rodger WARD | Dr. R.N. Sabourin | Pawl | ??? | Offenhauser | L4 4.5 | Firestone |
| 14 | Bill VUKOVICH | Fuel Injection/Howard Keck | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 15 | Johnnie PARSONS | Belond Equa-Flow/Calif. Muffler | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 16 | Duane CARTER | Automobile Shippers/Casaroll | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 16 | Jimmy JACKSON | Automobile Shippers/Casaroll | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 17 | Bob SWEIKERT | Lutes Truck Parts | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 18 | Bob SCOTT | Ray Brady | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 19 | Jimmy DAYWALT | Sumar/Chapman Root | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 21 | Bob SCOTT | Travelon Trailer / Ernest Ruiz | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 22 | Cliff GRIFFITH | Tom Sarafoff | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 22 | George TICHENOR | Tom Sarafoff | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 23 | Jerry HOYT | Sumar/Chapman Root | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 24 | Cal NIDAY | Jim Robbins | Stevens | ??? | Offenhauser | L4 4.5 | Firestone |
| 25 | Jimmy REECE | Emmett Malloy | Pankratz | D | Offenhauser | L4 4.5 | Firestone |
| 26 | Henry BANKS | Hopkins/Motor Racers | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 27 | Ed ELISIAN | H.A. Chapman | Stevens | ??? | Offenhauser | L4 4.5 | Firestone |
| 28 | Larry CROCKETT | Federal Engineering | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 31 | Gene HARTLEY | John Zink | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 32 | Ernie McCOY | Ray Crawford | Kurtis Kraft | 500B | Offenhauser | L4 4.5 | Firestone |
| 33 | Len DUNCAN | Ray Brady | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 34 | Troy RUTTMAN | Automobile Shippers/Casaroll | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 35 | Pat O'CONNOR | Hopkins/Motor Racers | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 36 | George FONDER | Ed Stone | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 36 | Al HERMAN | Ed Stone | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 37 | Eddie RUSSO | Federal Engineering | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 38 | Bill HOLLAND | Bardahl/Ed Walsh | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 38 | Jim RATHMANN | Bardahl/Ed Walsh | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 39 | Pat FLAHERTY | Shouse Motors | Kurtis Kraft | 500A | Chrysler | V8 4.5 | Firestone |
| 41 | Frank MUNDY | McDowell/Roger Wolcott | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 43 | Johnny THOMSON | H.A. Chapman | Nichels | ??? | Offenhauser | L4 4.5 | Firestone |
| 44 | Walt FAULKNER | Peter Schmidt | Kuzma | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 45 | Art CROSS | Bardahl/Ed Walsh | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 47 | Danny OAKES | Privé | Ferrari | 375S | Ferrari | 375 V12 4.5 | Firestone |
| 49 | Danny OAKES | Micro-Nut | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 51 | Bill HOMEIER | Jones & Maley Cars | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 52 | Chuck WEYANT | Park Motors | Silnes | ??? | Offenhauser | L4 4.5 | Firestone |
| 53 | Jimmy DAVIES | Pat Clancy | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 54 | Eddie SACHS | Marion Engineering | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 59 | Jim RATHMANN | Elgin Piston Pin | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 62 | Duke DINSMORE | Commercial Motor Freight | Ewing | D | Offenhauser | L4 4.5 | Firestone |
| 65 | Danny KLADIS | Advance Muffler/Bruce Bromme | Bromme | ??? | Offenhauser | L4 4.5 | Firestone |
| 65 | Spider WEBB | Advance Muffler/Bruce Bromme | Bromme | ??? | Offenhauser | L4 4.5 | Firestone |
| 66 | Bob CHRISTIE | Christy | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 67 | Duke DINSMORE | D-A Lubricants Racing | Ewing | D | Offenhauser | L4 4.5 | Firestone |
| 67 | Potsy GOACHER | D-A Lubricants Racing | Moore | ??? | Offenhauser | L4 4.5 | Firestone |
| 68 | Ed ELISIAN | Peter Wales Trucking | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 69 | Johnnie TOLAN | Hoosier Racing Team | Kurtis Kraft | 500A | Offenhauser | L4 c 3.0 | Firestone |
| 71 | Frank ARMI | T.W. & W.T. Martin | Kurtis Kraft | ??? | Offenhauser | L4 4.5 | Firestone |
| 71 | George FONDER | T.W. & W.T. Martin | Kurtis Kraft | ??? | Offenhauser | L4 4.5 | Firestone |
| 73 | Mike NAZARUK | McNamara/Lee Elkins | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 74 | Andy LINDEN | Brown Motors | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 77 | Fred AGABASHIAN | Merz Engineering/Milt Marion | Kurtis Kraft | 500C | Offenhauser | L4 4.5 | Firestone |
| 83 | Eddie JOHNSON | McNamara/Lee Elkins | Turner | ??? | Offenhauser | L4 4.5 | Firestone |
| 88 | Manuel AYULO | Peter Schmidt | Kuzma | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 89 | Pat FLAHERTY | Dunn Engineering | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 93 | Billy DeVORE | Youngstown White Truck | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 97 | Walt FAULKNER | Belanger Motors | Lesovsky | ? | Offenhauser | L4 c 3.0 | Firestone |
| 98 | Chuck STEVENSON | J.C. Agajanian | Kuzma | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 99 | Jerry HOYT | Murrell Belanger | Kurtis Kraft | ??? | Offenhauser | L4 4.5 | Firestone |
| 99 | Lee WALLARD | Belanger Motors | Kurtis Kraft | ??? | Offenhauser | L4 4.5 | Firestone |