Complex sentence: In 1934 they moved to rooms in the Alexandra Chambers, 27 Grenfell Street, and in 1939 formally changed their name to the League of Women Voters with "Women's Non-Party Association" a sub-title.
Split into simpler sentences: In 1934 they moved to rooms in the Alexandra Chambers, 27 Grenfell Street. In 1939 the organization became the League of Women Voters with "Women's Non-Party Association" a sub-title.