Kateryna Caurs (nee Pimenow) was born on 7 July 1915 in Luzk, Poland. She grew up firstly in the Ukraine and then in Russia, where she studied mechanical engineering at the Moscow Technical Institute.
From 1946 to 1949 Kateryna worked with the United Nations Relief and Rehabilitation Administration (UNRRA) and later as a clerk for the International Refugee Organisation (IRO). In 1950 Kateryna and her mother migrated to Australia. Due to her degree and previous work in Russia and Germany, Kateryna was able to work as a mechanical engineer once in Australia.
She married Latvian immigrant Alexander Caurs in 1959. Alexander was born in Latvia on 12 July 1926, he migrated to Australia in 1948, arriving in Sydney aboard the 'Charlton Sovereign' on 29 October. Alexander worked as a fitter, and was living in Camberwell when he was naturalised in 1959. He married Kateryna Pimenow the same year on the 10th July. His parent's Peter and Nadeshda Caurs migrated to Australia in 1950, although they appear to have left in 1956. From 22 August 1966 to 21 August 1970 he worked as a storeman for the Commonwealth of Australia Department of Works.