[3] In the early 1890s Jeffreys was a member of Charles Wyndham's company at the Criterion Theatre, where she appeared in The Bauble Shop, The Fringe of Society, The Headless Man, Betsy, Madame Favart, La Mascotte and Haste to the Wedding.
[16] She continued to appear in Alexander's company both in London and on tour in his Ruritanian play The Prisoner of Zenda, handing her role over to Fay Davis in October 1896.
[17] The Pall Mall Gazette judged that Jeffreys's highly promising gift for comedy had now come to fruition, and thought her the best of the cast, which also included Fred Terry, Weedon Grossmith and Alfred Maltby.
[18] The theatrical newspaper The Era said: Her first marriage ended in 1903, when she obtained a divorce on the grounds of Curzon's cruelty and adultery; she was awarded custody of their two children, Evelyn Ellis Isabella and George (later a successful actor).
[21] In October 1907 Jeffreys appeared in the opening production of the Queen's Theatre in Madeleine Lucette Ryley's comedy The Sugar Bowl, under her husband's management.
At His Majesty's in 1909 Jeffreys played a part some way removed from her usual agreeable and attractive characters, appearing as the vicious Lady Sneerwell in Tree's production of The School for Scandal.
Reviews were good,[22] and although The Athenaeum thought Jeffreys adopted "perhaps rather too gentle a manner to suggest the widow's acidity of temper",[23] The Morning Post found her "agreeably disagreeable".
[9] In an obituary notice The Stage said of her, "Ellis Jeffreys had all the qualities of a comedy actress – fine presence, keen humour, feeling, ease and distinction of manner, polish, and an accomplished technique".