The franchise adopted the "Browns" moniker in 1931 after playing as the Springfield Senators from 1925 to 1930 as members of the Class B|level Illinois-Iowa-Indiana League.
The Senators finished with a 32–37 overall record, placing 4th in the Illinois-Iowa-Indiana League standings under Manager Rube Dessau.
[5][6][3][7] The 1933 Springfield Senators became an affiliate of the St. Louis Cardinals, playing in the Class B level Missouri Valley League.
Springfield ended the 1933 season with a record of 43–70, placing 5th in the Missouri Valley League, finishing 38.5 games behind the champion Davenport Blue Sox.
The Springfield Senators ended the 1935 season with a record of 74–45, placing 2nd in the Illinois-Iowa-Indiana League standings.
However, Bloomington was declared the winner when Springfield refused to replay the protested final game, a ruling that was upheld by the league president.
The Browns ended the 1938 regular season in 4th place with a record of 63–60, under Manager Walter Holke.
Springfield ended the 1939 regular season with a record of 65–55, finishing 4th in the Illinois-Iowa-Indiana League standings under manager Walter Holke.
In the Finals, the Springfield Browns defeated the Decatur Commodores 3 games to 2 to win the championship.
Springfield finished with a 65–59 record to place 4th in the league standings under returning manager Art Scharein.
Springfield ended the 1942 season with a record of 67–48, finishing 6.0 games behind the 1st place Cedar Rapids Raiders.
The Springfield Giants ended the 1950 season with a record of 60–59, placing 5th Mississippi-Ohio Valley League.
Springfield played the 1950 season home games at Jim Fitzpatrick Memorial Stadium.
[46][47][48] The 1950 Springfield Giants were noted to have played minor league home games at Jim Fitzpatrick Memorial Stadium.
The ballpark had previously hosted some games of the Springfield Sallies of the All-American Girls Professional Baseball League from 1948 to 1950.
With a capacity of 4,500, the ballpark was located at South 4th Street & East Stanford Avenue, Springfield, Illinois.