In 1921, the club changed its name to Harrison S.C. when it became a founding member of the professional American Soccer League and played its home matches at Harrison Field. The team won the New Jersey State Cup in 1920 and 1922.
In 1921, the club changed its name to Harrison S.C., becoming a founding member of the professional American Soccer League and playing its home games at Harrison Field. The team triumphed in the New Jersey State Cup in both 1920 and 1922.