My father was a mechanic in the No. 1 Airfield Construction Squadron (1ACS) I think, or maybe 2ACS, who originally built that strip in the early 1950s. I’m fact-checking now, but I found this rather colonialist news story in the Sydney Morning Herald. trove.nla.gov.au/newspaper/ar...
Big Air Base To Be Built On Cocos Is. - The Sydney Morning Herald (NSW : 1842 - 1954) - 25 Aug 1951
Within a few weeks 500 men of an R.A.A.F. construction squadron will leave for the Cocos Island group, Australia's newest possession. There they ...