A Ben Millers team, managed by E. Brinkman, competed in the St. Louis Association Foot Ball League during the 1904-05 season. In 1913, Ben Millers entered the Federal Park League in St. Louis, Missouri. The Federal Park League had been created that season after disagreements about permissible levels of professionalism had split the St. Louis Soccer League .St. Leo's, the city’s only fully professional team joined with several other St. Louis teams, including Ben Millers, to form the Federal Park League. This league existed only two seasons as the differences dividing the previous SLSL teams were reconciled leading to the re-establishment of the SLSL in 1915. Ben Millers joined the reconstituted SLSL, immediately asserting its dominance by winning three consecutive league titles. While the National Challenge Cup was established by the United States Football Association in 1914, the St. Louis teams did not enter it until 1918. In 1920, Ben Millers became the first team outside of the northeast to win the trophy. While they never repeated as champions, they made the final in 1926. The team continued strong into the late 1920s but began to fade with the new decade. Frankie Vaughan took over as manager for the 1935-36 season.