The new association quickly moved to establish a headquarters at 38 Holborn Viaduct, London, from where it would agree on and promote a set of rules by which the new National League would be played. By July 1890 it was estimated that there were over 90 baseball clubs in England alone, with Derby Baseball Club being widely believed to be the best professional club in England. Yorkshire proved to be a surprising hotbed of baseball by 1890 when it was reported that “there are more baseball clubs in Yorkshire than in any other county in England.” It was not totally unexpected when the Secretary of Essex County Cricket Club, Morton Peto Betts, resigned his position to take up the role of Secretary of the newly formed Baseball Association of Great Britain, in July 1890.