|Full name||William Henry Allsop|
|Date of birth||29 January 1912|
|Place of birth||Ripley, Derbyshire, England|
|Date of death||1997|
* Senior club appearances and goals counted for the domestic league only.
Allsop played for Ripley Town and Bolton Wanderers, before joining Port Vale as an amateur in June 1931. He signed as a professional in August 1931 and made his debut on 16 January 1932, in a 2–0 win over Bristol City at Ashton Gate. He played the last five games of the 1932–33 season, but was not selected again after that and was given a free transfer from The Old Recreation Ground to Halifax Town in May 1934. He had played six Second Division games and one FA Cup game for the "Valiants". He went on to make 242 league appearances for Halifax. He appeared as a guest for both Aldershot and Derby County during the war.
- Sourced from William Allsop profile at the English National Football Archive (subscription required)
|Port Vale||1931–32||Second Division||1||0||1||0||0||0||2||0|
|Halifax Town||1934–35||Third Division North||36||0||2||0||3||0||41||0|
|1935–36||Third Division North||41||0||4||0||1||0||46||0|
|1936–37||Third Division North||42||0||1||0||1||0||44||0|
|1937–38||Third Division North||42||0||2||0||2||0||46||0|
|1938–39||Third Division North||41||0||6||0||0||0||47||0|
|1946–47||Third Division North||37||0||3||0||0||0||40||0|