Collingbourne was born in
Camberwell in London in 1880, the daughter of Maria Eleanor
née Witham (1858–1888) and Henry Ashdown Collingbourne (1859-), a printer's labourer. Her mother died when she was 8 years old, following which she was raised by her aunt and uncle. She was living alone in Camberwell in 1901. Her stage appearances include a series of
Edwardian musical comedies produced by
George Edwardes, such as
A Greek Slave at
Daly's Theatre (1898) and Gladys Stourton in
A Gaiety Girl at the
Gaiety Theatre (1899). She originated the small role of Yung Shi (and later took over the title role) in
San Toy at Daly's (1899–1900), and Nancy Staunton in
The Toreador at the Gaiety (1901–1902). She left the production to marry Laurence Margetson (1874–1928), a hosiery manufacturer, with whom she had three children: William Laurence Margetson (1902–1992); Colleen Mary Margetson (1908–1995), and the novelist and writer
Stella Margetson (1912–1992). After her marriage she retired from acting. In her later years she lived at The Holdynge, Aldwick Avenue in
Bognor Regis in
Sussex. ==References==