Frank Mather was an English association football goalkeeper who played in the first two American National Challenge Cups.
Mather played for the Derby County reserves which won the 1909-1910 Derbyshire Cup.
[1] By 1913, he was playing for Brooklyn Celtic in the New York State Association Football League.
[2] In 1914, Celtic lost to the Brooklyn Field Club in the first National Challenge Cup.
[4] By May 1915, he was back with Celtic when they went to the final of the Challenge Cup, losing this time to Bethlehem Steel.