Question: What was the name of the team that rugby league footballer Brian Gregory played for in Greater Manchester?

Context paragraphs:
Tom van Vollenhoven: Tom van Vollenhoven (born 29 April 1935) is a South African former rugby union and rugby league footballer who played in the 1950s, and 1960s.  He enjoyed a prolific rugby league career with English club St. Helens after switching codes from rugby union in the 1950s.  Vollenhoven became a rugby league sensation with the club in a career spanning ten seasons from the 1957 to the 1967–68 season.  During this time he amassed a club record 392 tries in 408 appearances.  This includes a record 62 in the 1958–59 Northern Rugby Football League season.  In 2000, he was inducted into the Rugby League Hall of Fame.

Les Sheard: Leslie Sheard is an English school teacher, and rugby union and professional rugby league footballer who played in the 1970s, and 1980s, and coached in the 1980s, playing club level rugby union (RU) for Wakefield RFC, and playing representative level rugby league (RL) for England, and Yorkshire, and at club level for Castleford, Wakefield Trinity (Heritage № 777), York (captain), and Huddersfield, as a fullback , or centre , i.e. number 1, or, 2 or 5, and coaching club level rugby league (RL) for Huddersfield, as of 2009 he lives in Devon. <ref name="York Rugby League Club’s championship-winning team of 1980/1 to be re-united at a special dinner"> </ref>

Brian Bevan: Brian Earl Bevan (1924–1991) was an Australian professional rugby league footballer who played in the 1940s, 1950s and 1960s who became the only player ever to have been inducted into both the Australian Rugby League Hall of Fame and British Rugby League Hall of Fame.  An Other Nationalities representative winger, Bevan scored a world record 796 tries, mainly for Warrington.  In 2008, the centenary year of rugby league in Australia, he was named on the wing of Australia's Team of the Century (1908-2007).  Bevan was the only player chosen in the team who had never represented Australia in a test match.

Francis Gregory (sportsman): Francis Gregory (April→June 1904 – death unknown) birth registered in Bodmin, was a Cornish wrestler of the 1920s, and 1930s, Cornish wrestling referee (stickler) of the 1960s, Professional boxer of the 1920s, rugby union footballer who played in the 1920s, and 1930s, playing club level rugby union (RU) for Redruth R.F.C., professional wrestler of the 1930s through to 1963, and professional rugby league footballer who played in the 1930s, and 1940s, playing representative level rugby league (RL) for England, and at club level for Wigan, and Warrington, as prop , or second-row , i.e. number 8 or 10, or, 11 or 12, during the era of contested scrums.  Francis Gregory wrestled professionally under the name Francis St. Clair Gregory, his sobriquet of 'St. Clair' is purportedly the name of town in Brittany visited by Cornish wrestlers for wrestling tournaments.

Nat Silcock, Jr.: Nathan "Nat" Douglas Silcock (25 November 1927 in Widnes – 7 July 1992 in Penketh) was an English professional rugby league footballer who played in the 1940s, 1950s, and 1960s, and coached in the 1960s, playing at representative level for Great Britain, England, Rugby League XIII, Lancashire, and Australia's Newcastle team, and at club level for Wigan, St. Helens, Warrington, South Newcastle, and Eastern Suburbs, as a wing , or second-row , i.e. number 2 or 5, 8 or 10, or, 11 or 12, during the era of contested scrums, and coaching at club level for South Newcastle, and Eastern Suburbs.  Nat Silcock was the son of the rugby league footballer, Nat Silcock, Sr.

Albert Asher: Arapeta Paurini Wharepapa, or Albert Asher as he was more commonly known, (3 December 1879 in Tauranga – 8 January 1965 in Auckland) was a New Zealand dual-code international rugby union and professional rugby league footballer of the 1890s, 1900s, 1910s and 1920s .  At representative level Asher played rugby union for New Zealand, North Island, and Auckland playing on the Wing and played rugby league at representative level for Australasia, New Zealand, Auckland and the New Zealand Māori rugby league team.  One of his brothers, Ernie, was also a rugby league international while another, John, became a Ngati Pukenga and Ngati Pikiao leader.  Katherine Te Rongokahira Parata was a sister.

Brian Gregory (rugby league): Brian Gregory was a professional rugby league footballer who played in the 1960s, and 1970s, playing at representative level for Wales, and Lancashire, and at club level for Salford, Warrington (Heritage № 686), Oldham, Wigan, and Wakefield Trinity (Heritage № 858), as a second-row , or loose forward/lock , i.e. number 11 or 12, or 13.

Wigan Warriors: Wigan Warriors R.L.F.C. is a professional rugby league club based in Wigan, Greater Manchester, England.  The club competes in the Super League and are the current Super League Champions, and World Club Challenge Champions.

Billy Williams (rugby, born 1905): William Arthur "Billy" Williams (29 December 1905 – 4 November 1973) born in Crumlin, Monmouthshire, was a Welsh dual-code international rugby union and professional rugby league footballer who played in the 1920s, and 1930s, playing representative level rugby union (RU) for Wales rugby union, and at club level for Crumlin and Cross Keys as a Flanker, and playing representative level rugby league (RL) for Great Britain rugby league, and Wales rugby league, and at club level for Salford (Captain), as a prop , or second-row , i.e. number 8 or 10, or, 11 or 12, during the era of contested scrums, he died in Manchester.

Neil Budworth: Neil Budworth (born 10 March 1982 in Higher End, Wigan, Greater Manchester) is a Wales international rugby league footballer who finished his career playing for Mackay Cutters.  He previously played for London Broncos/ in the Super League competition and was one of their longest serving players, and Crusaders in National League One and Super League, as a hooker .  Neil is the most decorated hooker in Welsh international rugby league history.

Supporting paragraphs: Brian Gregory (rugby league) Wigan Warriors
Answer: Wigan Warriors