Ketty Hjorth is born on 26 March 1910. She is the daughter of shoemaker Anders Hjort and Jørgine Kirstine Hjorth (née Hansen) of Rudkøbing, Langeland. 
She volunteers for service in WAAF during the Second World War. In December 1942 she is attached to No. 10 Initial Training Wing, WAAF Section, Scarborough, Yorkshire, holding the rank of Aircraftwoman 2nd Class (2141884).
- Rudkøbing parish record, England & Wales, Death Index: 1984-2005
- Andersen et al., 1994; Finn Buch, Archive of the Recruiting Office, Danish Nationals