Thames Ironworks F.C. resigned his post as club secretary. He was replaced in the position by Irons defender George Neill, thus beginning a history of the team appointing from within. Thames Ironworks lost their first fixture in the Southern League Division One 1–0 away at Reading on 16 September 1899, but managed their biggest league win of the season only two days later with 4–0 home win against Chatham Town. Thames Ironworks recorded their biggest win of the season, in the fourth qualifying round of the FA Cup on 28 October, trouncing Dartford away 7–0. However, The Irons good form soon ended on
Thames Ironworks F.C. to be Thames Ironworks' last defeat of the season, and they could go on to win an impressive 17 of their last 18 games, drawing the other game. In an away game against Maidenhead on 31 December 1898, which Thames Ironworks won 4–0, Charlie Dove completed the distinction of playing in every position for the club when he deputised for goalkeeper Tommy Moore. Thames Ironworks played their first game of the new year at the Memorial Grounds on 14 January 1899, when they entertained Wycombe. This time, the Wycombe goalkeeper missed the train, and the team began the game with