found:Hutchinson, Roger. Into the light, 1999 :t.p. (Sunderland Football Club)
found:Why do I do it?, 2003:p.2 (Sunderland Association Football Club; SAFC)
found:The battle for a town: Sunderland AFC v Sunderland Albion, 2007:t.p. (Sunderland AFC)
found:Stars in stripes, 2007:t.p. (Sunderland AFC as the Vancouver Royal Canadians)
found:Its website, viewed 8 September 2020:contact page (Sunderland S.A.F.C.) club page (Sunderland Stadium of Light, Sunderland SR5 1SU)
found:Wikipedia WWW Site, 24 Mar. 2009:Vancouver Royals page (soccer team based in Vancouver, B.C., 1967-1968, played in United Soccer Association. League made up of teams imported from foreign leagues, Vancouver club was actually Sunderland A.F.C.)
found:Wikipedia website, viewed 8 September 2020(Sunderland A.F.C.; nickname: The Black Cats; it was founded as 'Sunderland and District Teachers A.F.C.' by schoolmaster James Allan in what has commonly been believed to be October 1879; however, evidence suggests that the club was not formally created until a year later, on 25 September 1880; it was renamed as 'Sunderland A.F.C.' and became open to more than just school teachers in October 1880)