Although there are no records of Agnes Booth's birth or her family's residence in Australia, by her own account she was born in Sydney, New South Wales. She migrated to California with her family in 1858, at the age of about 14. She made her US debut in early 1858 as Agnes Land, performing with her sister Belle at Maguire's Opera House, San Francisco, attracting attention and gaining recognition and managing a season of the Metropolitan theatre in Detroit. In 1861 she married actor Harry A. Perry in San Francisco, but was widowed in 1862. Her six-year apprenticeship with Thomas Maguire allowed her to move from shape actress to leading lady. In 1865 she moved to New York where she appeared at the Winter Garden Theatre. As Agnes Perry, in 1866 she joined the Boston Theatre Company, of which she was a member for several years. In 1867, she was married to Junius Brutus Booth, Jr. and she performed as Agnes Booth thereafter. At the height of her popularity reviews of her performances were effusive. In 1874, the News described her as "the most finished and effective emotional actress at present on the metropolitan stage." In 1889, Belford's Magazine wrote of another "great triumph" by Agnes Booth in Captain Swift. "For painstaking attention to detail, nicety of intonation, and powerful expression, Agnes Booth is in the front rank of leading ladies. We have seen her in many society dramas, and in each she has shown a charming appreciation of all the requirements... The mingled expression of shame, suffering and maternal love in Agnes Booth's face during scene is one not soon to be forgotten. In 1874, she and Junius made a praise-worthy trip to the far west playing San Francisco's California Theater and Piper's Opera House in Virginia City. Her repertoire included Romeo and Juliet, Hunchback, and Lady of Lyons. In 1878 she played Madeleine Renaud in the Union Square Theatre's production of "A Celebrated Case," the program noting that she had "kindly undertaken this part in order to strengthen the cast." From 1881 to 1891, she was with the Madison Square Company. After 1891, she went to Europe, then returned to the United States where she resided in the artist community of New Rochelle, New York and resumed her work on Broadway in nearby New York City. Booth gained fame for her role in the melodrama The Sporting Duchess along with fellow actress and New Rochelle neighbor Cora Tanner. Junius Booth died in 1883, and in 1885 she married John B. Schoeffel, manager of Boston's Tremont theatre. Her last major performance was in L'Arlesienne in 1897.