She also studied singing and – somewhat unconventionally for women at the time – was a keen sportswoman and notable member of one of the Thames rowing clubs.
She worked closely with Joyce Bidder throughout her career. After meeting in 1933, the two shared a studio in southwest London for many years, and exhibited together at the FAS in 1987. Borne also showed at the RA (1932–61), the SWA (1933–71), the RSBS – to which she was elected associate, and the RSMPSG – of which she served as vice president.