[1] A multi-talented woman, she was during the course of her life a medical student, pianist, singer, actress, dancer, broadcaster and teacher, giving lessons in music and elocution, as well as briefly serving as an alderman of the Port of Spain City Council.
"[5][6] Kathleen Davis was also in the cast of the 1936 play about Toussaint Louverture by C. L. R. James (her friend from Trinidad) that was staged in London's West End starring Robeson.
Back in England for the 1953 coronation of Queen Elizabeth II, she took part in a celebratory BBC Children's Television programme, together with Boscoe Holder, Sheila Clarke, Billy Sholanke and the Russell Henderson Steel Band.
"[10] The Aunty Kay Show provided an early platform for many of Trinidad and Tobago's performers to make their debut as youngsters,[1][9][11] including Heather Headley, Lancelot Layne and calypsonian Slinger Francisco, better known as The Mighty Sparrow.
Forming part of the Emancipation 2007 celebrations, the concert was creatively based around the cultural contribution of: Marjorie Padmore, Olive Walke, Kathleen "Aunty Kay" Warner, Olga Comma-Maynard, Cheryl Byron, Winifred Atwell, Daisy Voisin, Jean Coggins-Simmons, Beryl McBurnie and Beulah "Lady B" Bobb.