1930 saw Arsenal Football Club on the brink of the team's first spell of dominance in their history. And there was scandal everywhere.

SourcesAcademic work:Matthew Taylor, The Leaguers: The Making of Professional Football in England, 1900-1939

British Newspaper Archive:Sheffield IndependentDerby Daily TelegraphShields Daily NewsPortsmouth Evening NewsLancashire Evening PostDundee Evening TelegraphEdinburgh Evening NewsYorkshire Post and Leeds IntelligencerThe PeopleBelfast TelegraphBirmingham Daily GazetteAthletic NewsSheffield Daily Telegraph.Aberdeen Press and JournalDaily HeraldBurnley News

General reference/web pages/wiki:Gerry Farrell, ‘Halting the alien invasion’, The Football Pink, https://footballpink.net/2019-3-1-halting-the-alien-invasion/ Nick Harris, ‘The world league’, The Guardian, https://www.theguardian.com/football/2003/jul/27/sport.comment, Nick Harris, ‘Home and Away: How Arsenal’s imports changed the landscape’, The Independent, https://www.independent.co.uk/sport/football/news-and-comment/home-and-away-how-arsenals-imports-changed-the-landscape-483550.html ‘Gerry Keyser’, Arsenal club website, https://www.arsenal.com/historic/players/gerry-keyser ‘Bill Harper’, Wikipedia, https://en.wikipedia.org/wiki/Bill_Harper_(footballer,_born_1897) Mark Andrews, ‘The Arsenal’s Clock End Clock’, thearsenalhistory.com (September 2019), http://www.thearsenalhistory.com/?p=13803David Jack information from Wikipedia page on history of football transfer fee records, https://en.wikipedia.org/wiki/List_of_most_expensive_association_football_transfers#Historical_progression