7708537TREGONNING D.R.C.T. : Medical Practitioner 18 Dec 1920 - Private Practice @ Perth [ WA Australia ]0public2018-10-19 13:35:182021-06-29 08:02:2020
1920-12-184205810TREGONNING, DONALD RUPERT CHARLES571484Private Practice3974925Perth -- WA, Australia5682500552211920 'Advertising', The West Australian (Perth, WA : 1879 - 1954), 18 December, p. 8. , viewed 19 Oct 2018, http://nla.gov.au/nla.news-article2779421786334205810TREGONNING, DONALD RUPERT CHARLES
 1125https://heurist-usyd.cloud.edu.au/heurist/ExpertNationOccupation eventlet1125-371