Complex sentence: In 1955, Brampton Park became RAF Brampton and units began to be located there rather than just personnel such as the Central Reconnaissance Establishment which was formed at Brampton in January 1957.
Split into simpler sentences: In 1955, Brampton Park became RAF Brampton and units began to be located there rather than just personnel. Units included the Central Reconnaissance Establishment, which was formed at Brampton in January 1957.