As Louie René's understudy, she had the opportunity, on occasion, to play Lady Jane in Patience, the Queen of the Fairies in Iolanthe, and Dame Carruthers in The Yeomen of the Guard.
Pinafore, Ruth in The Pirates of Penzance, Lady Blanche in Princess Ida, Katisha in The Mikado, and the Duchess in The Gondoliers, as well as the abovementioned parts in Patience, Iolanthe, and Yeomen.
[4] The company returned to the Savoy Theatre in April 1908 for the London repertory season, and Morrison was relegated to her previous role as understudy, occasionally going on for René as Buttercup and Katisha, and playing Mrs. Jones in the one-act companion piece A Welsh Sunset.
She left the company in September 1909 to appear at the Savoy in the world premiere of W. S. Gilbert's Fallen Fairies on 15 December 1909, creating the part of Locrine.
She played the Duchess of Plaza-Toro in The Gondoliers at Her Majesty's Theatre, Melbourne from 27 June 1914, and was praised for her Katisha in The Mikado and Dame Carruthers in The Yeomen of the Guard.
[9] She was in the Australian premiere of Tonight's the Night at Her Majesty's, Melbourne, on 8 July 1916, together with Dorothy Brunton, Connie Ediss and Alfred Frith, directed by Harry B. Burcher with choreography by Minnie Hooper.
[17] In 1927 she had a minor part in the musical comedy Maritza in New York as a marquise who has a facelift performed on her by beauty specialists, and henceforth needs to employ a servant whose job is to express emotions for her.
[18] In May 1930, she returned to Australia with Edith Taliaferro by the steamer Sonoma[19] under contract to J. C. Williamson's,[20] playing Rachel Crothers' Let Us Be Gay at the Criterion Theatre, Sydney.
The cast then returned to Sydney to open in The First Mrs Fraser in March[27] followed in May with Hastings Turner's comedy, The Spot on the Sun, co-starring with Ada Reeve.
[31] She returned to Australia by the Makura on 20 October 1934, joining Madge Elliott and Cyril Ritchard, for the Otto Harbach and Jerome Kern musical Roberta at His Majesty's Theatre, Melbourne, opening on 22 December 1934; High Jinks, and Our Miss Gibbs.