VK0HM 1970 Heard Island
From November 1969 to April 3, 1970, WA6EAM, Hugh Milburn was on the island as VK0HM / AX0HM. He was part of a team of scientists who did work for the "National Mapping Authority".
From the estate of W0OKC
Info from 73 Magazine, July 1970
Tnx W5KNE, 5B4AHJ