Champions of the EFL League One
Includes predecessor leagues. 1920-1921 Season Winner Runner-up (not promoted) 1920–21 Crystal Palace Southampton 1921-1958 Season North South Winner Runner-up (not promoted) Winner Runner-up (not promoted) 1921–22 Stockport County Darlington Southampton Plymouth Argyle 1922–23 Nelson Bradford Park Avenue Bristol City Plymouth Argyle 1923–24 Wolverhampton Wanderers Rochdale Portsmouth Plymouth Argyle 1924–25 Darlington Nelson Swansea City Plymouth Argyle 1925–26 Grimsby Town Bradford Park Avenue Reading Plymouth Argyle 1926–27 Stoke City Rochdale Bristol City (2) Plymouth Argyle 1927–28 Bradford Park Avenue Lincoln City Millwall Northampton Town 1928–29 Bradford City Stockport County Charlton Athletic Crystal Palace 1929–30 Port Vale Stockport County Plymouth Argyle Brentford 1930–31 Chesterfield Lincoln City Notts County Crystal Palace 1931–32 Lincoln City Gateshead Fulham Reading 1932–33 Hull City Wrexham Brentford Exeter City 1933–34 Barnsley Chesterfield Norwich Ci...