In 1958 218 Signal Squadron, Royal Corps of Signals was part of the brigade.(Lord & Watson, p. 66) It appears to have disbanded in 1960Lord & Watson Signals (Lord & Watson Royal Corps of Signals, p. 80) state this squadron was disbanded in 1960. On 1 January 1967 257 Signal Squadron became 1st Artillery Brigade HQ and Signals Squadron, as reported by the National Archives from 1967-70. Lord & Watson, p. 80 refers to 218 Squadron still being active, but this seems likely to have been a confusion with 1 Artillery Brigade HQ and Signals Squadron.
