两支球队在早期比赛中,评论员将它们称为"就像两个老朋友"(like two old, firm friends)"[2]。
来自一份名为《The Scottish Referee》的体育报纸在1904年苏格兰杯决赛前刊登的一幅讽刺漫画,漫画中一位老人手持写有"赞助老公司:流浪者队,凯尔特人有限公司"(Patronise The Old Firm: Rangers, Celtic Ltd)的告示牌,突显两队交锋的商业利益[3]。
Murray, William J. (1984) The Old Firm: sectarianism, sport, and society in Scotland; Edinburgh: J. Donald Publishers; Atlantic Highlands, N.J. ISBN0-85976-121-5
Walker, Graham and Alan Bairner. (2005) Popular Culture in Scotland and Ireland, 1800–2000: Sport, Politics, and Religion. Ireland and Scotland: Culture and Society, 1700–2000: Four Courts Press; Dublin. ISBN978-1851828753