Warden began life as Florence Alice Price, the daughter of a stockbroker.

[2] From 1880 to 1885, Warden pursued a career as an actress, while she also published stories and novels under her stage name.

[3] However, Augustus Moore later complained that he had done most of the work of writing the play, but had not been credited, while Charles Percy claimed the plot had been stolen from him.

[1] In 1887, at St Pancras, Warden married George Edward James,[4] an actor.

[10] Her younger daughter Olivia Mary died, also unmarried, in Chelsea in 1982, aged ninety.