1951 Hylton Baker, Erik Gunnar Erickson and an unnamed engineer at the Snowy Mountain Scheme 30 September 1951
The Snowy Mountains Scheme was a vast hydro-electric project to generate power for a quickly expanding Australia. Erik Gunnar worked there for a number of years from the last 1940's to the early 1950's, eventually worked his way up to the position of Supervising Driller.