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."