Owing to her father's occupation, the family moved many times, living at Gravesend and Winterton-on-Sea before finally settling in Holyhead in 1913.
Bridle enrolled at the Dublin Metropolitan School of Art (DMSA) in 1915, moving in with her aunt in uncle at 60 Upper Rathmines Road.
Bridle was awarded the Taylor scholarship in 1920, for her work based on the Greek myth Leda and the Swan.
The Mermaid, her enamel plaque which was completed under the guidance of Percy Oswald Reeves, was first shown at the Arts and Crafts Society of Ireland exhibition in 1921, then at the Galeries Barbazanges, Paris in 1922, and finally won first prize in its section at the Tailteann Games of 1924.
While still in London and attending the RCA, Bridle taught classes at night at the Elephant and Castle School of Art from 1924 to 1925.
In 1928, Bridle held her first solo exhibition in Enniskillen Town Hall, a show which included still life studies, portraits, and landscapes.
An exhibition of Irish art at the DMSA featured her painting The Inner Harbour, Holyhead, and she was a contributor to the Olympic festival in 1928, in Amsterdam.
[2] In 1947, Bridle's second major exhibition was held at the CEMA gallery, Belfast, featuring landscapes from Fermanagh and Anglesey.
This was followed by a solo show at the Belfast Museum and Art Gallery in 1950, as well as being shown at the annual exhibitions of the Royal Ulster Academy from 1950 to 1979.
When Bridle retired from the Collegiate School in 1963, the Enniskillen committee of the Arts Council held an exhibition of her work in the town hall.
Her final public appearance was made in 1989, at the Ardowen Theatre, Enniskillen, for a viewing of David Hammond's film, Reminiscence by Kathleen Bridle.