SCI Chronological Military History
From the San Clemente Island web site
1951:
"... The U. S. Air Force (USAF) 670th Aircraft Control & Warning Squadron
(AC&W) from Norton Air Force Base,
established a radar station manned by approximately 200 military, and 25
civilian technician personnel,
These operations were in support of the North American Air Defense (NORAD)
command. Barracks, BOQ,
and messing facilities were improved for their use. The USAF assumed
responsibility for logistic support, utilities,
Wilson Cove maintenance, and messing."
1959:
"... Three Navy officers and 39 enlisted men, along with 200 Air Force
officers and men, and 25 civilian technicians and
specialists, now manned and maintained a radar site and the airstrip."
1960:
"... The Air Force 670th AC&W radar squadron moved from the island, leaving
it completely in Navy hands."
1998:
"Construction of facilities and installation of equipments was completed, and
operations commenced, for the
new FACSFAC ARSR-4 radar complex at Mount Thirst."