Career
A forward, he scored 52 goals in 244 league games in a ten-year career in the Football League and the Scottish Football League. He was loaned out to Hibernian, before joining American club Philadelphia Fury in 1978. He then spent three years, winning the Second Division title in 1979-1980.
He joined Chesterfield in 1981, before being traded to Portuguese Vale in October 1983.
However he was sacked the next year after failing to report for training, and later played for Spalding United. Henderson started his career with Jock Wallace"s Rangers, scoring 13 goals in 33 appearances in the 1975-1976 season after getting his first goal in a 2–1 defeat to Hearts at Ibrox.
However he scored only one goal in 12 games in 1976-1977 as Rangers finished second in the league. He played just twice in the 1977-1978 season, and was loaned out to Eddie Turnbull"s Hibernian.
He scored one goal in six Premier Division games for "Hibs" during his loan spell at Easter Road.
Henderson moved to the United States to play in the North American Soccer League for Philadelphia Fury in 1978. He scored three goals in 17 games at Veterans Stadium for Alan Ball"s side. He then moved to England to play for Leicester City in the 1978-1979 season, who were managed by his former boss Jock Wallace.
He scored four goals in the 1980-1981 campaign, as Leicester were relegated straight back out of the First Division.
He scored 16 goals in 100 league and cup appearances in his three years at Filbert Street. Henderson moved on to Frank Barlow"s Chesterfield, who finished 11th in the Third Division in 1981-1982 before dropping out of the division in last place in 1982-1983.
He scored 23 goals in 87 league games at Saltergate. He joined Portuguese Vale in exchange for Bob Newton and £8,000 in October 1983.
He was partnered with Eamonn O"Keefe, and played scored seven goals in 28 games in the 1983-1984 season.
The "Valiants" were relegated into the Fourth Division and manager John McGrath lost his job and was replaced by his assistant John Rudge. Henderson failed to turn up for pre-season training at Vale Park for the next season and the club cancelled his contract. He then moved on to non-league Spalding United. with Rangers.