In Bolgart she met share-farmer and future husband Sydney "Syd" Uden Erickson (1908–1987) and they were married in Fremantle in June 1936. The couple bought land at Bolgart in 1938, which they cleared and named "Fairlea". They raised four children: Dorothy (born 1939), John (1940), Bethel (1942), and Robin (1943); the next few years were devoted largely to raising the children and establishing the farm. However Erickson maintained her interest in natural history and in 1951 published her first book, the self-illustrated "Orchids of the West". This was followed by "Triggerplants" in 1958.