Opal exporter and wool buyer.
'von Drehnen, Otto (1886–1953)', People Australia, National Centre of Biography, Australian National University, https://peopleaustralia.anu.edu.au/biography/von-drehnen-otto-21961/text31973, accessed 7 December 2024.
12 April,
1886
Elberfeld,
Prussia,
Germany
8 April,
1953
(aged 66)
Sydney,
New South Wales,
Australia
Includes subject's nationality; their parents' nationality; the countries in which they spent a significant part of their childhood, and their self-identity.