In 1896, they broke box-office records with an original Australian pantomime, Djin Djin. Williamson married Mary Alice Weir, a dancer, in 1899, and his partnership with Musgrove dissolved that year unpleasantly. Among other ventures, in 1900 Williamson leased Her Majesty's Theatre in Melbourne, and began a series of extensive renovations and expansions to the theatre that became the flagship venue for J.C. Williamson in years to come.
In 1896, they set box-office records with an original Australian pantomime called "Djin Djin."  Williamson married dancer Mary Alice Weir in 1899 and his partnership with Musgrove ended that year. He leased Her Majesty's Theatre in Melbourne in 1900 and began extensive renovations to make it the flagship venue for J.C. Williamson.