John Aubrey Casewell (birth registered October→December 1909 in Llanfyllin district — died 1974 (aged 64–65) in Leeds) was a Welsh professional rugby league footballer of the 1920s and '30s who at representative level played for Wales, and at club level for Salford, and Leeds. Aubrey Casewell won a cap for Wales while at Salford in 1932. Only five rugby league footballers have won "All Six Cups" during their career, they are; Aubrey Casewell (while at Salford and Leeds), Alan Edwards (while at Salford and Bradford Northern), John Etty (while at Oldham and Wakefield Trinity), Edward "Ted" Slevin (while at Wigan and Huddersfield), and Derek Turner (while at Oldham and Wakefield Trinity). "All Six Cups" being the Challenge Cup, Rugby...
