Mary Willis should not be confused with Mary Willis (US Army officer).
Mary Willis was a British stage actress of the eighteenth century.
She was the daughter of the actress Elizabeth Willis and sometimes appeared alongside her billed as Miss Willis. Like her mother she spent a number of years in the company at the Drury Lane Theatre but also appeared at the Haymarket Theatre and Lincoln's Inn Fields. Debuting as a child actor in 1701, she mainly appeared in revivals but occasionally acted in new plays. Her last known stage appearance was in York in 1734 when she played Selima in Nicholas Rowe's Tamerlane.[1]