The daughter of a London solicitor, Cecily Briant (then Cecily Christian), and her younger sister Barbara, went to Caterham School in Surrey. Both were artists in their own right. Cecily, who married surveyor and estate agent Bernard Briant in 1915, submitted an embroidered panel entitled “My Friend Played Golf”, in the Applied Arts section at the 1948 Olympics. Barbara was an artist and art teacher, and regularly exhibited her paintings in the London area in the 1920s and 30s. Her first husband, Harry Watson, was a prominent landscape artist, and he entered the 1932 Olympic painting competition. Cecily was involved with the London YWCA, and was a past chairman (now chairperson) and president of the organisation.