Billy Henderson, a right-back began his career with his local side Whitburn from whom he joined Brighton & Hove Albion where he made 2 appearances in 1919-20.
He then moved to Aberdare Athletic and played 19 league games in Aberdare’s first ever season in the Football League (1921–22). He left Aberdare mid-way during the season, in January 1922, to join West Ham United in a £650 transfer and was part of the West Ham team that won promotion to the First Division.
He also appeared in the famous White Horse Final, the first FA Cup final to be held at the brand new Wembley Stadium, during the 1922-23 season. He was an ever-present for the Hammers during the 1923-24 season. He retired because of ill health after the 1928–29 season, having played 183 times and scored one goal, the goal being scored in the FA Cup against his old club Aberdare in 1924.