[1] Mayo co-directed and starred in Rosina Filippi's adaptation of Jane Austen's Pride and Prejudice.

She decided to translate Gabriele d'Annunzio's play La Giaconda which had been written for the leading Italian actress Eleonora Duse.

[7] In 1908 she wrote about her prison experience[8] and she co-founded the Actresses' Franchise League with Gertrude Elliott, Adeline Bourne and Sime Seruya at a meeting in London's Criterion Restaurant.

[9][10] The league's work included helping those who needed to speak publicly and also giving advice on make-up and clothing to suffragettes who were trying to avoid attention (and arrest).

[11] However, the enumerator was able to confirm from the neighbours that the head of the house was Mrs Monck Mason, who lived there with her daughter, her sister, and two servants.

She was sentenced to a fortnight in jail, but she later recalled that some of the guard officers were interested enough to attend a suffragette meeting,[8] In 1912 her mother was also arrested for a similar offence.

[6] In 1958 Mayo was interviewed by the BBC where she recounted her time as a suffragette including the attack on the Guard's Club.