| 1 | Henry BANKS | Blue Crown Spark Plug/Hopkins | Moore | ??? | Offenhauser | L4 4.5 | Firestone |
| 2 | Walt FAULKNER | Agajanian Grant Piston Ring | Kuzma | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 3 | Johnnie PARSONS | Wynn's Friction Proofing / Walsh | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 4 | Cecil GREEN | John Zink/M.A. Walker | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 5 | Tony BETTENHAUSEN | Mobiloil/Rotary Engineering | Deidt | Tuffanelli Derrico | Offenhauser | L4 4.5 | Firestone |
| 6 | Duke DINSMORE | Brown Motors | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 7 | Paul RUSSO | Kennedy Tank | Nichels | ??? | Offenhauser | L4 4.5 | Firestone |
| 8 | Chuck STEVENSON | Bardahl/Carl Marchese | Marchese | ??? | Offenhauser | L4 4.5 | Firestone |
| 9 | Manuel AYULO | Jack Hinkle | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 9 | Jack McGRATH | Jack Hinkle | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 10 | Bill SCHINDLER | H.A. Chapman | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 12 | Johnny McDOWELL | W.J. / Maserati Race Cars | Maserati | 8CTF | Offenhauser | L4 c 3.0 | Firestone |
| 14 | Jerry HOYT | Pat Clancy | Ewing | ??? | Offenhauser | L4 4.5 | Firestone |
| 16 | Mauri ROSE | Pennzoil/Howard Keck | Deidt | Tuffanelli Derrico | Offenhauser | L4 4.5 | Firestone |
| 18 | Duke NALON | Novi Purelube/Jean Marcenac | Kurtis Kraft | ??? | Novi | L8 c 3.0 | Firestone |
| 19 | Mack HELLINGS | Tuffanelli-Derrico | Deidt | Tuffanelli Derrico | Offenhauser | L4 4.5 | Firestone |
| 22 | George CONNOR | Blue Crown Spark Plug/Marant | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 23 | Cliff GRIFFITH | Ludson Morris | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 24 | Jackie HOLMES | Richard Palmer | Adams | ??? | Offenhauser | L4 4.5 | Firestone |
| 25 | Sam HANKS | Peter Schmidt | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 26 | Joe JAMES | Bob Estes Lincoln-Mercury | Watson | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 27 | Duane CARTER | Mobiloil/Rotary Engineering | Deidt | Tuffanelli Derrico | Offenhauser | L4 4.5 | Firestone |
| 29 | George FONDER | Ray Brady | Deidt | Tuffanelli Derrico | Sparks | L6 c 3.0 | Firestone |
| 31 | Manuel AYULO | Coast Grain | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 32 | Chet MILLER | Novi Purelube/Jean Marcenac | Kurtis Kraft | ??? | Novi | L8 c 3.0 | Firestone |
| 33 | Jimmy DAYWALT | Iddings | Meyer | ??? | Novi | L8 c 3.0 | Firestone |
| 34 | Johnnie TOLAN | Peter Wales Trucking | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 35 | Frank ARMI | Hancock Dome | Bardazon | ??? | Offenhauser | L4 4.5 | Firestone |
| 36 | George LYNCH | Louis Rassey | Rassey | ??? | Offenhauser | L4 4.5 | Firestone |
| 37 | Bob SWEIKERT | Marion Engineering | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 41 | Mike SALAY | Michael Szalai | Szalai | ??? | Offenhauser | L4 4.5 | Firestone |
| 42 | Bill BOYD | Ed Gdula | Gdula | ??? | Offenhauser | L4 4.5 | Firestone |
| 44 | Walt BROWN | Federal Engineering | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 45 | Jackie HOLMES | Cincinnati Race Cars | Adams | ??? | Offenhauser | L4 4.5 | Firestone |
| 46 | Bayliss LEVRETT | Safety Seal | Silnes | ??? | Offenhauser | L4 4.5 | Firestone |
| 48 | Rodger WARD | Deck Manufacturing | Bromme | ??? | Offenhauser | L4 4.5 | Firestone |
| 49 | Joe BARZDA | Joe Barzda | Maserati | 8CTF | Offenhauser | L4 4.5 | Firestone |
| 51 | Bud SENNETT | Auto Accessorie | Maserati | 8CTF | Maserati | L8 c 3.0 | Firestone |
| 52 | Bobby BALL | Blakely Oil | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 53 | George FONDER | Lutes Truck Parts | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 57 | Andy LINDEN | George Leitenberger | Sherman | ??? | Offenhauser | L4 4.5 | Firestone |
| 58 | Frank ARMI | Joe Scopa | Scopa | ??? | Offenhauser | L4 4.5 | Firestone |
| 59 | Fred AGABASHIAN | Granatelli-Bardahl/Grancor | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 63 | George FONDER | Ray Brady | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 64 | Frank ARMI | Bardahl/Dick Page | Kurtis Kraft | ??? | Duray | L4 c | Firestone |
| 66 | Kenny EATON | Jeanie-Lee/Glessner | Stevens | ??? | Offenhauser | L4 4.5 | Firestone |
| 67 | Gordon REID | Johnson / Herbert | Silnes | ??? | Chevrolet | ??? | Firestone |
| 68 | Carl FORBERG | Automobile Shippers/Rassey | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 69 | Gene FORCE | Brown Motors | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 71 | Bill MACKEY | Karl Hall | Hall | ??? | Offenhauser | L4 4.5 | Firestone |
| 72 | Jimmy BRYAN | Viking Trailer | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 73 | Carl SCARBOROUGH | McNamara/Lee Elkins | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 75 | Leroy WARRINER | George Heller | Kurtis Kraft | ??? | Offenhauser | L4 4.5 | Firestone |
| 76 | Jimmy DAVIES | Parks Offenhauser/L.E. Parks | Pawl | ??? | Offenhauser | L4 4.5 | Firestone |
| 77 | Doc SHANEBROOK | Elgin Piston Pin | Stevens | ??? | Offenhauser | L4 4.5 | Firestone |
| 78 | Ray KNEPPER | Bardahl/Fred Tomshe | Silnes | ??? | Offenhauser | L4 4.5 | Firestone |
| 81 | Bill VUKOVICH | Central Excavating/Pete Salemi | Trevis | Indycar | Offenhauser | L4 4.5 | Firestone |
| 83 | Mike NAZARUK | Jim Robbins | Kurtis Kraft | 1000 | Offenhauser | L4 4.5 | Firestone |
| 98 | Troy RUTTMAN | Agajanian Featherweight | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 99 | Lee WALLARD | Murrell Belanger | Kurtis Kraft | ??? | Offenhauser | L4 4.5 | Firestone |
| 100 | Jean ACHARD | Privé | Talbot Lago | T26C | Talbot | 23CV L6 4.5 | Firestone |