| 2 | Jim RATHMANN | Travelon Trailer / Ernest Ruiz | Kurtis Kraft | 500B | Offenhauser | L4 4.5 | Firestone |
| 3 | Sam HANKS | Bardahl/Ed Walsh | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 4 | Duane CARTER | Miracle Power | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 5 | Jack McGRATH | Jack Hinkle | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 6 | Jim RATHMANN | Wynn's Friction Proofing / Walsh | Moore | ??? | Offenhauser | L4 4.5 | Firestone |
| 7 | Paul RUSSO | Federal Engineering | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 8 | Jimmy BRYAN | Blakely Oil | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 9 | Duke NALON | Novi Governor | Kurtis Kraft | ??? | Novi | L8 c 3.0 | Firestone |
| 10 | Henry BANKS | Hopkins/Motor Racers | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 12 | Ernie McCOY | H.A. Chapman | Stevens | ??? | Offenhauser | L4 4.5 | Firestone |
| 14 | Bill VUKOVICH | Fuel Injection/Howard Keck | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 15 | Chet MILLER | Novi Governor | Kurtis Kraft | ??? | Novi | L8 c 3.0 | Firestone |
| 16 | Art CROSS | Springfield Welding/Paoli | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 17 | Joe SOSTILIO | Belanger Motors | Kurtis Kraft | 500A | Chrysler | V8 4.5 | Firestone |
| 21 | Johnnie PARSONS | Belond Equa-Flow | Kurtis Kraft | 500B | Offenhauser | L4 4.5 | Firestone |
| 22 | Marshall TEAGUE | Pure Oil/Hart Fullerton | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 23 | Walt FAULKNER | Automobile Shippers/Casaroll | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 23 | Johnny MANTZ | Automobile Shippers/Casaroll | Kurtis Kraft | 500A | Offenhauser | L4 4.5 | Firestone |
| 24 | Cliff GRIFFITH | Bardahl/Ed Walsh | Kurtis Kraft | 500B | Offenhauser | L4 4.5 | Firestone |
| 25 | George CONNOR | Chrysler / Wolcott | Kurtis Kraft | 500A | Chrysler | V8 4.5 | Firestone |
| 26 | Eddie JOHNSON | City of Detroit | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 28 | Pat O'CONNOR | Slick Racers | Deidt | Tuffanelli Derrico | Offenhauser | L4 4.5 | Firestone |
| 29 | Bob SCOTT | Belond Equa-Flow/Bromme | Bromme | ??? | Offenhauser | L4 4.5 | Firestone |
| 31 | Len DUNCAN | Caccia Motors | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 32 | Andy LINDEN | Cop-Sil-Loy/Rotary Engineering | Stevens | ??? | Offenhauser | L4 4.5 | Firestone |
| 33 | Art CROSS | Ray Brady | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 34 | Eddie SACHS | Ludson Morris | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 35 | Buzz BARTON | Parks Offenhauser/L.E. Parks | Pawl | ??? | Offenhauser | L4 4.5 | Firestone |
| 36 | Potsy GOACHER | Sid Street Motors | Pankratz | D | Offenhauser | L4 4.5 | Firestone |
| 38 | Don FREELAND | Bob Estes | Watson | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 39 | Bill TAYLOR | Blue Crown Spark Plug/Hopkins | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 41 | Gene HARTLEY | Federal Engineering | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 42 | Willard CANTRELL | Emmett Malloy | Pankratz | D | Offenhauser | L4 4.5 | Firestone |
| 43 | Roy NEWMAN | Roy Newman | Maserati | 8CTF | Maserati | L8 c 3.0 | Firestone |
| 44 | Leroy WARRINER | Jim Robbins | Kurtis Kraft | 1000 | Offenhauser | L4 4.5 | Firestone |
| 46 | Johnny FEDRICKS | Dunn Engineering | Kurtis Kraft | 500B | Offenhauser | L4 4.5 | Firestone |
| 48 | Jimmy DAYWALT | Sumar/Chapman Root | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 49 | Bill HOLLAND | Ray Crawford | Kurtis Kraft | 500B | Offenhauser | L4 4.5 | Firestone |
| 51 | Bob SWEIKERT | Dean Van Lines | Kuzma | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 52 | Duke DINSMORE | Sarafoff | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 53 | Jimmy DAVIES | Pat Clancy | Kurtis Kraft | 500B | Offenhauser | L4 4.5 | Firestone |
| 55 | Jerry HOYT | John Zink | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 56 | Johnny THOMSON | Dr. R.N. Sabourin | Del Roy | ??? | Offenhauser | L4 4.5 | Firestone |
| 57 | Hal ROBSON | Voelker | Voelker | ??? | Voelker | ??? | Firestone |
| 59 | Fred AGABASHIAN | Grancor-Elgin Piston Pin | Kurtis Kraft | 500B | Offenhauser | L4 4.5 | Firestone |
| 61 | Bill HOLLAND | Slick Racers | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 62 | Spider WEBB | Lubri-Loy/3-L Racing Team | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 63 | Danny OAKES | Lindsey Hopkins | Moore | ??? | Offenhauser | L4 4.5 | Firestone |
| 64 | Pat O'CONNOR | Engle-Stanko | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 65 | Allen HEATH | Commercial Motor Freight | Ewing | D | Offenhauser | L4 4.5 | Firestone |
| 66 | Johnnie TOLAN | Chrysler / Wolcott | Kurtis Kraft | 500A | Chrysler | V8 4.5 | Firestone |
| 67 | Johnny KAY | Jeanie-Lee/Glessner | Clemons | ??? | Offenhauser | L4 4.5 | Firestone |
| 69 | Joe BARZDA | California Speed | Maserati | 8CTF | Maserati | L8 c 3.0 | Firestone |
| 71 | Jackie HOLMES | Merkler Machine Works | Kurtis Kraft | ??? | Offenhauser | L4 4.5 | Firestone |
| 73 | Carl SCARBOROUGH | McNamara/Lee Elkins | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 74 | Pat O'CONNOR | Brown Motors | Schroeder | ??? | Offenhauser | L4 4.5 | Firestone |
| 75 | Wayne SELSER | Christy | Christy | ??? | Offenhauser | L4 4.5 | Firestone |
| 76 | George FONDER | George Leitenberger | Silnes | ??? | Offenhauser | L4 4.5 | Firestone |
| 77 | Pat FLAHERTY | Peter Schmidt | Kurtis Kraft | 3000 | Offenhauser | L4 4.5 | Firestone |
| 78 | Cal NIDAY | Storey-Ricketts | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 79 | Frank ARMI | Mel-Rae/Mel Wiggers | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 81 | Len DUNCAN | Central Excavating/Pete Salemi | Trevis | Indycar | Offenhauser | L4 4.5 | Firestone |
| 82 | Johnny ROBERTS | William Burns | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 83 | Mike NAZARUK | Kalamazoo/Lee Elkins | Turner | ??? | Offenhauser | L4 4.5 | Firestone |
| 84 | Bill HOMEIER | Coast Grain | Lesovsky | ? | Offenhauser | L4 4.5 | Firestone |
| 85 | Johnnie TOLAN | Blakely Oil | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 86 | Bill BOYD | Merz Engineering | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 87 | Bill HOMEIER | Cal Connell | Kurtis Kraft | 500B | Cadillac | V8 4.5 | Firestone |
| 88 | Manuel AYULO | Peter Schmidt | Kuzma | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 89 | Spider WEBB | Fadely-Anderson/R.A. Cott | Maserati | 8CTF | Offenhauser | L4 4.5 | Firestone |
| 91 | Red HAMILTON | Clyde Dillon | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 92 | Rodger WARD | M.A. Walker Electric | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |
| 93 | Al HERMAN | Traylor Engineering | Kurtis Kraft | 2000 | Offenhauser | L4 4.5 | Firestone |
| 95 | Jorge DAPONTE | Wayne | Johnson | ??? | Wayne | L6 4.5 | Firestone |
| 96 | Jud LARSON | Helin Flyer | Snowberger | ??? | Offenhauser | L4 4.5 | Firestone |
| 97 | Chuck STEVENSON | J.C. Agajanian | Kuzma | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 98 | Tony BETTENHAUSEN | J.C. Agajanian | Kuzma | Indy Roadster | Offenhauser | L4 4.5 | Firestone |
| 99 | Cal NIDAY | Miracle Power | Kurtis Kraft | 4000 | Offenhauser | L4 4.5 | Firestone |