1899–1900 Thames Ironworks F.C. season match sales of any shares one-to-one. At the end of June, Thames Ironworks F.C. resigned from the Southern League and were officially wound up. On 5 July 1900 they reformed under the new name of West Ham United F.C. and accepted an offer of the Southern League place left vacant by Thames Ironworks. Lew Bowen, a Welsh clerk at the Iron Works Company was appointed as the first West Ham United club secretary. Bowen had previously written Thames Ironworks match reports for the "Thames Iron Works Gazette", also known as "TIWG". He would retain twelve Thames Ironworks players for the
Thames Ironworks F.C. Frank Taylor, Bob Allan and Fred Corbett. Former club secretary and Ironworks defender George Neill was also retained for the new season ahead. Tom Bradshaw's close friends Bill Joyce and Kenny McKay left for Portsmouth and Fulham respectively, while Albert Carnelly joined arch-rivals Millwall. The first, and only, known crest to be featured on a Thames Ironworks kit was the Union flag with Thames Ironworks initials ("TIWFC") surrounding it. The original colours of the team were dark blue due to Arnold Hills being a former student and football Blue of Oxford University, although the team used a variety of kits.