6742837Cavanagh R.J. : Assistant Engineer 1 Jan 1921 - Public Works and Water Supply @ Perth [ WA Australia ]0public0000-00-00 00:00:002020-06-10 13:28:001501921-01-015444710Cavanagh, Righton John674294Public Works and Water Supply3974925Perth -- WA, Australia551850105226Government Gazette of WA, 29 April 1921, p. 682, https://www.slp.wa.gov.au/gazette/gazette.nsf/searchgazette/A2969DE26EAC2DF148257AFB0005852C/$file/gg020.pdf86325444710Cavanagh, Righton John
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