Players who made their Major League debut during the selected season. Player must have appeared in a game as a hitter or a pitcher.
Batting and Pitching statistics for debuts are available since 1957.
| Bill Baker | 1940-05-04 | boxscore | 29.079 | C | 6-0 | 200 | R | R | 1911-02-22 | Paw Creek,NC | MLB | 1940-1949 | 1940-1949 | | premium | premium | premium |
| Herman Besse | 1940-04-19 | boxscore | 28.254 | P | 6-2 | 190 | L | L | 1911-08-16 | St. Louis,MO | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Tiny Bonham | 1940-08-05 | boxscore | 26.361 | P | 6-2 | 215 | R | R | 1913-08-16 | Ione,CA | MLB | 1940-1949 | 1940-1949 | | premium | premium | premium |
| Bobby Bragan | 1940-04-16 | boxscore | 22.174 | SS-C | 5-11 | 175 | R | R | 1917-10-30 | Birmingham,AL | MLB | 1940-1948 | 1940-1948 | | premium | premium | premium |
| Sig Broskie | 1940-09-11 | boxscore | 29.180 | C | 6-0 | 200 | R | R | 1911-03-23 | Iselin,PA | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Bill Butland | 1940-05-29 | boxscore | 22.074 | P | 6-5 | 185 | R | L | 1918-03-22 | Terre Haute,IN | MLB | 1940-1947 | 1940-1947 | | premium | premium | premium |
| Soup Campbell | 1940-04-21 | boxscore | 25.052 | OF | 6-1 | 188 | L | R | 1915-03-07 | Sparta,VA | MLB | 1940-1941 | 1940-1941 | | premium | premium | premium |
| Bob Carpenter | 1940-09-12 | boxscore | 22.280 | P | 6-3 | 195 | R | R | 1917-12-12 | Chicago,IL | MLB | 1940-1947 | 1940-1947 | | premium | premium | premium |
| Mike Chartak | 1940-09-13 | boxscore | 24.144 | OF | 6-2 | 180 | L | L | 1916-04-28 | Brooklyn,NY | MLB | 1940-1944 | 1940-1944 | | premium | premium | premium |
| Bob Collins | 1940-04-28 | boxscore | 30.230 | C | 5-11 | 176 | R | R | 1909-09-18 | Pittsburgh,PA | MLB | 1940-1944 | 1940-1944 | | premium | premium | premium |
| Dick Conger | 1940-04-22 | boxscore | 19.024 | P | 6-0 | 185 | R | R | 1921-04-03 | Los Angeles,CA | MLB | 1940-1943 | 1940-1943 | | premium | premium | premium |
| Crash Davis | 1940-06-15 | boxscore | 20.342 | 2B-SS | 6-0 | 173 | R | R | 1919-07-14 | Canon,GA | MLB | 1940-1942 | 1940-1942 | | premium | premium | premium |
| Mike Dejan | 1940-07-13 | boxscore | 25.188 | OF | 6-1 | 185 | L | L | 1915-01-13 | Cleveland,OH | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Lloyd Dietz | 1940-04-26 | boxscore | 28.081 | P | 6-0 | 180 | R | R | 1912-02-12 | Cincinnati,OH | MLB | 1940-1943 | 1940-1943 | | premium | premium | premium |
| Cal Dorsett | 1940-08-19 | boxscore | 27.077 | P | 6-0 | 180 | R | R | 1913-06-10 | Lone Oak,TX | MLB | 1940-1947 | 1940-1947 | | premium | premium | premium |
| Ed Fernandes | 1940-06-09 | boxscore | 22.096 | C | 5-9 | 185 | B | R | 1918-03-11 | Oakland,CA | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Sam File | 1940-09-10 | boxscore | 18.120 | SS | 5-11 | 160 | R | R | 1922-05-18 | Chester,PA | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Bill Fleming | 1940-08-21 | boxscore | 27.028 | P | 6-0 | 190 | R | R | 1913-07-31 | Rowland Heights,CA | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Wes Flowers | 1940-08-08 | boxscore | 26.002 | P | 6-2 | 190 | L | L | 1913-08-13 | Vanndale,AR | MLB | 1940-1944 | 1940-1944 | | premium | premium | premium |
| Charlie Frye | 1940-07-28 | boxscore | 27.018 | P | 6-1 | 175 | R | R | 1913-07-17 | Hickory,NC | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Charlie Gilbert | 1940-04-16 | boxscore | 20.288 | OF | 5-9 | 165 | L | L | 1919-07-08 | New Orleans,LA | MLB | 1940-1947 | 1940-1947 | | premium | premium | premium |
| Carden Gillenwater | 1940-09-22 | boxscore | 23.138 | OF | 6-1 | 175 | R | R | 1917-05-13 | Riceville,TN | MLB | 1940-1948 | 1940-1948 | | premium | premium | premium |
| Johnny Gorsica | 1940-04-22 | boxscore | 25.031 | P | 6-2 | 180 | R | R | 1915-03-29 | Bayonne,NJ | MLB | 1940-1947 | 1940-1947 | | premium | premium | premium |
| Buddy Gremp | 1940-09-13 | boxscore | 21.045 | 1B | 6-1 | 175 | R | R | 1919-08-05 | Denver,CO | MLB | 1940-1942 | 1940-1942 | | premium | premium | premium |
| Orval Grove | 1940-05-28 | boxscore | 20.278 | P | 6-3 | 196 | R | R | 1919-08-29 | Mineral,KS | MLB | 1940-1949 | 1940-1949 | | premium | premium | premium |
| Lefty Guise | 1940-09-03 | boxscore | 31.358 | P | 6-2 | 172 | L | L | 1908-09-18 | Driggs,AR | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Dick Hahn | 1940-09-07 | boxscore | 24.051 | C | 5-11 | 176 | R | R | 1916-07-24 | Canton,OH | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Jack Hallett | 1940-09-13 | boxscore | 25.311 | P | 6-4 | 215 | R | R | 1914-11-13 | Toledo,OH | MLB | 1940-1948 | 1940-1948 | | premium | premium | premium |
| Herb Hash | 1940-04-19 | boxscore | 29.073 | P | 6-1 | 180 | R | R | 1911-02-13 | Woolwine,VA | MLB | 1940-1941 | 1940-1941 | | premium | premium | premium |
| Ed Head | 1940-07-27 | boxscore | 22.189 | P | 6-1 | 175 | R | R | 1918-01-25 | Selma,LA | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Lefty Hoerst | 1940-04-26 | boxscore | 22.264 | P | 6-3 | 192 | L | L | 1917-08-11 | Philadelphia,PA | MLB | 1940-1947 | 1940-1947 | | premium | premium | premium |
| Johnny Hutchings | 1940-04-26 | boxscore | 24.018 | P | 6-2 | 250 | B | R | 1916-04-14 | Chicago,IL | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Al Javery | 1940-04-23 | boxscore | 21.328 | P | 6-3 | 183 | R | R | 1918-06-05 | Worcester,MA | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Art Johnson | 1940-09-22 | boxscore | 21.074 | P | 6-2 | 185 | L | L | 1919-07-16 | Winchester,MA | MLB | 1940-1942 | 1940-1942 | | premium | premium | premium |
| Red Jones | 1940-04-16 | boxscore | 28.173 | OF | 6-3 | 190 | L | R | 1911-11-02 | Timpson,TX | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Wally Judnich | 1940-04-16 | boxscore | 24.089 | OF-1B | 6-1 | 205 | L | L | 1916-01-24 | San Francisco,CA | MLB | 1940-1949 | 1940-1949 | | premium | premium | premium |
| George Jumonville | 1940-09-13 | boxscore | 23.126 | SS | 6-0 | 175 | R | R | 1917-05-16 | Mobile,AL | MLB | 1940-1941 | 1940-1941 | | premium | premium | premium |
| Frank Kalin | 1940-09-25 | boxscore | 22.363 | OF | 6-0 | 200 | R | R | 1917-10-03 | Steubenville,OH | MLB | 1940-1943 | 1940-1943 | | premium | premium | premium |
| Frank LaManna | 1940-04-16 | boxscore | 20.243 | P | 6-3 | 195 | R | R | 1919-08-22 | Homer City,PA | MLB | 1940-1942 | 1940-1942 | | premium | premium | premium |
| Ed Levy | 1940-04-16 | boxscore | 23.176 | OF-1B | 6-6 | 190 | R | R | 1916-10-28 | Birmingham,AL | MLB | 1940-1944 | 1940-1944 | | premium | premium | premium |
| Tony Lupien | 1940-09-12 | boxscore | 23.148 | 1B | 5-11 | 185 | L | L | 1917-04-23 | Chelmsford,MA | MLB | 1940-1948 | 1940-1948 | | premium | premium | premium |
| Art Mahan | 1940-04-30 | boxscore | 26.333 | 1B | 5-11 | 178 | L | L | 1913-06-08 | Somerville,MA | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Jim Mallory | 1940-09-08 | boxscore | 22.013 | OF | 6-1 | 170 | R | R | 1918-09-01 | Lawrenceville,VA | MLB | 1940-1945 | 1940-1945 | | premium | premium | premium |
| Don Manno | 1940-09-22 | boxscore | 25.148 | OF-3B | 6-1 | 190 | R | R | 1915-05-04 | Williamsport,PA | MLB | 1940-1941 | 1940-1941 | | premium | premium | premium |
| Harry Marnie | 1940-09-15 | boxscore | 22.077 | 2B-SS | 6-1 | 178 | R | R | 1918-07-06 | Philadelphia,PA | MLB | 1940-1942 | 1940-1942 | | premium | premium | premium |
| Paul Masterson | 1940-09-15 | boxscore | 24.341 | P | 5-11 | 165 | L | L | 1915-10-16 | Chicago,IL | MLB | 1940-1942 | 1940-1942 | | premium | premium | premium |
| Buster Maynard | 1940-09-17 | boxscore | 27.183 | OF-3B | 5-11 | 170 | R | R | 1913-03-25 | Henderson,NC | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Frank Metha | 1940-04-22 | boxscore | 26.137 | 2B-3B | 5-11 | 165 | R | R | 1913-12-13 | Los Angeles,CA | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Carl Miles | 1940-06-08 | boxscore | 22.084 | P | 5-11 | 178 | B | L | 1918-03-22 | Trenton,MO | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Alex Monchak | 1940-06-22 | boxscore | 23.115 | SS | 6-0 | 180 | R | R | 1917-03-05 | Bayonne,NJ | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Alex Mustaikis | 1940-07-07 | boxscore | 31.111 | P | 6-3 | 180 | R | R | 1909-03-26 | Chelsea,MA | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Maury Newlin | 1940-09-20 | boxscore | 26.097 | P | 6-0 | 176 | R | R | 1914-06-22 | Bloomingdale,IN | MLB | 1940-1941 | 1940-1941 | | premium | premium | premium |
| Al Piechota | 1940-05-07 | boxscore | 26.115 | P | 6-0 | 195 | R | R | 1914-01-19 | Chicago,IL | MLB | 1940-1941 | 1940-1941 | | premium | premium | premium |
| Johnny Podgajny | 1940-09-15 | boxscore | 20.102 | P | 6-2 | 173 | R | R | 1920-06-10 | Chester,PA | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Jimmy Pofahl | 1940-04-16 | boxscore | 22.308 | SS | 5-11 | 185 | R | R | 1917-06-18 | Faribault,MN | MLB | 1940-1942 | 1940-1942 | | premium | premium | premium |
| Mel Preibisch | 1940-09-17 | boxscore | 25.305 | OF | 5-11 | 185 | R | R | 1914-11-23 | Sealy,TX | MLB | 1940-1941 | 1940-1941 | | premium | premium | premium |
| Steve Rachunok | 1940-09-17 | boxscore | 23.292 | P | 6-5 | 205 | R | R | 1916-12-05 | Rittman,OH | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Al Rubeling | 1940-04-16 | boxscore | 26.348 | 3B-2B | 6-0 | 185 | R | R | 1913-05-10 | Baltimore,MD | MLB | 1940-1944 | 1940-1944 | | premium | premium | premium |
| Johnny Rucker | 1940-04-16 | boxscore | 23.097 | OF | 6-2 | 175 | L | R | 1917-01-15 | Crabapple,GA | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Jack Sanford | 1940-08-24 | boxscore | 23.068 | 1B | 6-3 | 195 | R | R | 1917-06-23 | Chatham,VA | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Ham Schulte | 1940-04-16 | boxscore | 27.234 | 2B | 5-9 | 158 | R | R | 1912-09-01 | St. Louis,MO | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Tom Seats | 1940-05-04 | boxscore | 29.230 | P | 5-11 | 190 | R | L | 1910-09-24 | Farmington,NC | MLB | 1940-1945 | 1940-1945 | | premium | premium | premium |
| Frank Secory | 1940-04-28 | boxscore | 27.254 | OF | 6-1 | 200 | R | R | 1912-08-24 | Mason City,IA | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Dave Short | 1940-09-16 | boxscore | 23.134 | OF | 6-0 | 162 | L | R | 1917-05-11 | Magnolia,AR | MLB | 1940-1941 | 1940-1941 | | premium | premium | premium |
| Clyde Smoll | 1940-04-26 | boxscore | 26.016 | P | 5-10 | 175 | B | L | 1914-04-17 | Quakertown,PA | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Stan Spence | 1940-06-08 | boxscore | 25.087 | OF | 5-11 | 180 | L | L | 1915-03-20 | South Portsmouth,KY | MLB | 1940-1949 | 1940-1949 | | premium | premium | premium |
| Glen Stewart | 1940-06-26 | boxscore | 27.277 | SS-3B | 6-0 | 175 | R | R | 1912-09-29 | Tullahoma,TN | MLB | 1940-1944 | 1940-1944 | | premium | premium | premium |
| Neb Stewart | 1940-09-08 | boxscore | 22.116 | OF | 6-1 | 195 | R | R | 1918-05-21 | South Charleston,OH | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Nick Strincevich | 1940-04-23 | boxscore | 25.060 | P | 6-1 | 180 | R | R | 1915-03-01 | Gary,IN | MLB | 1940-1948 | 1940-1948 | | premium | premium | premium |
| Bobby Sturgeon | 1940-04-16 | boxscore | 20.259 | SS-2B | 6-0 | 175 | R | R | 1919-08-06 | Clinton,IN | MLB | 1940-1948 | 1940-1948 | | premium | premium | premium |
| Yank Terry | 1940-08-03 | boxscore | 29.181 | P | 6-1 | 180 | R | R | 1911-02-11 | Bedford,IN | MLB | 1940-1945 | 1940-1945 | | premium | premium | premium |
| Gil Torres | 1940-04-25 | boxscore | 24.252 | SS-3B | 6-0 | 155 | R | R | 1915-08-23 | Regla,CU | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Red Tramback | 1940-09-15 | boxscore | 24.325 | OF | 6-0 | 175 | L | L | 1915-11-01 | Iselin,PA | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Tom Turner | 1940-04-25 | boxscore | 23.235 | C | 6-2 | 195 | R | R | 1916-09-08 | Custer County,OK | MLB | 1940-1944 | 1940-1944 | | premium | premium | premium |
| Porter Vaughan | 1940-06-16 | boxscore | 21.042 | P | 6-1 | 178 | R | L | 1919-05-11 | Stevensville,VA | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Jack Wallaesa | 1940-09-22 | boxscore | 21.028 | SS | 6-3 | 191 | B | R | 1919-08-31 | Easton,PA | MLB | 1940-1948 | 1940-1948 | | premium | premium | premium |
| Ed Weiland | 1940-05-01 | boxscore | 25.163 | P | 5-11 | 180 | L | R | 1914-11-26 | Evanston,IL | MLB | 1940-1942 | 1940-1942 | | premium | premium | premium |
| Ernie White | 1940-05-09 | boxscore | 23.252 | P | 6-0 | 175 | R | L | 1916-09-05 | Pacolet Mills,SC | MLB | 1940-1948 | 1940-1948 | | premium | premium | premium |
| Fuzz White | 1940-09-17 | boxscore | 22.088 | OF | 6-0 | 175 | L | R | 1918-06-27 | Springfield,MO | MLB | 1940-1947 | 1940-1947 | | premium | premium | premium |
| Claude Wilborn | 1940-09-08 | boxscore | 28.014 | OF | 6-1 | 180 | L | R | 1912-09-01 | Woodsdale,NC | MLB | 1940-1940 | 1940-1940 | | premium | premium | premium |
| Ace Williams | 1940-07-15 | boxscore | 23.125 | P | 6-2 | 174 | R | L | 1917-03-18 | Montclair,NJ | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Max Wilson | 1940-09-10 | boxscore | 24.105 | P | 5-7 | 160 | L | L | 1916-06-03 | Haw River,NC | MLB | 1940-1946 | 1940-1946 | | premium | premium | premium |
| Mickey Witek | 1940-04-16 | boxscore | 24.125 | 2B-SS | 5-10 | 170 | R | R | 1915-12-19 | Luzerne,PA | MLB | 1940-1949 | 1940-1949 | | premium | premium | premium |
| 83 record(s) |