[1] Mayhew became involved in producing plays, and owned the rights to M'Liss written by Clay M. Greene (adapted from a story by Bret Harte), in the 1870s.

[1] Mayhew performed the title role herself at the Grand Opera House in New York in September 1878, however, a legal battle over rights to the play eventually saw Annie Pixley take up the role to critical acclaim.

[citation needed] She made films, and also voiced characters for radio programmes.

[3] One of her last Broadway appearances was in the 1934 stage production of The Farmer Takes a Wife with Henry Fonda and June Walker.

[4] Mayhew donated playbills and other theatre ephemera to the New York Public Library in 1930.