Complex sentence: He moved to Victoria, and in 1901 had an office in Melbourne at 11 Elizabeth Street, and by 1915 was at 82 Elizabeth Street, when Arthur William Purnell joined him to form the partnership Beaver & Purnell which lasted 1915--1925.
Split into simpler sentences: He moved to Victoria, and in 1901 had an office in Melbourne at 11 Elizabeth Street. By 1915 was at 82 Elizabeth Street, when Arthur William Purnell joined him to form the partnership Beaver & Purnell which lasted 1915--1925.