Is this the family? 1942 application for naturalization.
JACKSON Charles Oscar [Karl Oskar JENSEN]
Possibly separated as wife’s present address is unknown but son and daughter’s address is known
Item details for: PP302/1, WA18035
JACKSON Charles Oscar [Karl Oskar JENSEN]
(see image)
https://recordsearch.naa.gov.au/SearchNRetrieve/Gallery151/dist/JGalleryViewer.aspx?B=1674044&S=12&N=15&R=0#/SearchNRetrieve/NAAMedia/ShowImage.aspx?B=1674044&T=P&S=12....
Arrived Melbourne from Norway 19/4/1888 per “Drumcraj”
Resided Melbourne 9 years, remainder of time in W.A.
Married, wife’s name May Jensen, born Brighton, England, 1879; age 62; resides -
present address unknown2 children:
Leslie Carl born 12/12/1901 Cue W.A. - 50A High St. Kingsland, London, England
May Irene born 3/12/1899 Cue W.A. - 238 Beaufort St. Perth
Wife’s Nationality prior to marriage was British.
Can order this file for a fee: Item details for: A714, 15/7347
SURNAME - JENSEN; GIVEN NAMES- Karl Oskar; DATE OF NATURALISATION - 28 MAY 1943; PREVIOUS NATIONALITY - NORWEGIAN; PLACE OF BIRTH - Fredrikstadt, NORWAY; YEAR OF BIRTH - 1869; PLACE OF RESIDENCE - Fremantle, WA; ADDITIONAL INFORMATION - Known as JACKSON, Charles Oscar; [W] JENSEN, May