[1] Adopting their nickname, Federalsburg was a minor league affiliate of the Philadelphia Athletics, a partnership that would continue until 1949.
[6] Federalsburg ended the 1938 regular season with a 56–56 record, finishing 9.0 games behind the first place Salisbury Indians.
[7][8][4] Bill Phillips of Federalsburg led the North Shore League with 31 home runs.
[10][11][4] Federalsburg pitcher Les Hinckle led the Eastern Shore League in three categories, with 27 wins, 309 strikeouts and a 2.49 ERA.
[13][14][4] Lloyd Rice of Federalsburg led the Eastern Shore League in batting average, hitting .363.
[4][16][17][18] The Eastern Shore League did not return to play for the 1942 season due to World War II.
[20][21][4] The Federalsburg A's placed fourth in the standings of the Eastern Shore League in the 1947 season and qualified for the playoffs.
[22] The A's ended the regular season with a record of 62–63, finishing 29.0 games behind the first place Cambridge Dodgers, as Pep Rambert served as the Federalsburg player/manager.
[23][24][4] In his dual role, Rambert won the North Shore League in batting title, hitting.
Teammate Ducky Detweiler of Federalsburg led the league with both 29 home runs and 133 RBI.
After a round robin series of the top four teams, the Rehoboth Beach Sea Hawks defeated Federalsburg in the Finals, 4 games to 3.