Career
Challenge Cup final appearances
Graham Southernwood played hooker in Castleford"s 12-28 defeat by Wigan in the 1992 Challenge Cup final during the 1991-1992 season at Wembley Stadium, London on Saturday 2 May 1992. County Cup final appearances
Graham Southernwood played in Castleford"s 26-6 victory over Bradford Northern in the 1991 Yorkshire Cup final during the 1991-1992 season at Elland Road, Leeds on Sunday 20 October 1991. Club career
Graham Southernwood made his début for Castleford in the 28-2 victory over Workington Town on Sunday 30 October 1988.
Graham Southernwood played, and scored a try in Featherstone Rovers" 22-39 defeat by Leeds in the 1995 Challenge Cup semi-final during 1994-1995 season at Elland Road, Leeds on Saturday 1 April 1995.
Graham Southernwood is the father of the rugby league football player, Cain Southernwood, and is the younger brother of the rugby league football player, Roy Southernwood, and David John Southernwood (birth registered during October→December 1970 (age 45–46) in Hemsworth district), and is the older brother of Kevin Roger Southernwood (birth registered during October→December 1972 (age 43–44) in Wakefield district).