'von Drehnen, Karl Julius (1901–1977)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/von-drehnen-karl-julius-21969/text, accessed 20 January 2026.
27 August,
1901
Knightsbridge, Adelaide,
South Australia,
Australia
4 May,
1977
(aged 75)
Toowoomba,
Queensland,
Australia
Includes subject's nationality; their parents' nationality; the countries in which they spent a significant part of their childhood, and their self-identity.