The McTaggarts held large pastoral interests. As a airport bum in my youth at Whyalla in South Australia occasionaly used to see Ian who used a Beechcraft V tail Bonanza to get about. The following links may provide some info you may find of interest. Will chase some old contacts in Whyalla to see if I come up with anything.
http://www.history.sa.gov.au/chu/pro...ine/July05.pdf
http://www.history.sa.gov.au/history...h_Anderson.pdf