The team began in 1917 under the name of the True American Club. They were the first uniformed boys' team in the state and won the junior state title in the 1920–21 season. A year later they changed their affiliation to Canton. Before the 1936/37 season, the club became known as Baltimore S.C.'. After the 1941/42 season, the first Baltimore Americans folded (see below) so Baltimore S.C. took the name, Baltimore Americans, for themselves.
After their first season, the club was renamed the ASL's first Baltimore Americans. After the original Americans folded following the 1941/42 season, Baltimore S.C., Baltimore's other ASL club, took the Americans nickname for themselves (see above).