He,
J. C. Williamson, and
Arthur Garner formed the
Williamson, Garner and Musgrove company in July 1882 when they became joint lessees of the
Theatre Royal, Melbourne and
Theatre Royal, Sydney. The partnership split in March 1890 following Williamson and Musgrove falling out. Williamson and Garner continued to run the Theatre Royal and
Princess Theatre in
Melbourne, and Musgrove taking control of the Theatre Royal in
Sydney. At the end of 1892, Williamson and Musgrove joined to stage In 1907 Musgrove produced a German grand opera company that introduced
Die Walküre (The Valkyrie),
Romeo and Juliet and
Hänsel und Gretel to the Australian public, again under the baton of
Gustave Slapoffski. Another opera season in 1909 was less successful. In late 1914 Musgrove produced
David Belasco's play
Du Barry in Melbourne with his lover
Nellie Stewart in the title role as well as his daughter Nancye Stewart as Marie Antoinette, age 16. Musgrove died suddenly at his home in
Sydney on 21 January 1916, his sixty-second birthday. ==Personality and family==