Have emailed Ask a Librarian at State Library of New South Wales regarding the 1927/1929 rolls.
cupcake
Have a reply from State Library of New South Wales .
They consulted the 1926, 1928, and 1930 electoral Rolls ( the rolls were produced every two years at this time).
1926 - No Titteringtons on the electoral roll for Redfern (Division of South Sydney, Sub-division of Redfern)
1928 - Titterington, Annie, 51 Castlereagh Street, home duties, F, Redfern (Division of South Sydney, Sub-division of Redfern)
Titterington, Janet, c.o. Maitland, 7 Castlereagh Street, home duties, F, Redfern (Division of South Sydney, Sub-division of Redfern)
1930 - Titterington, Janet, 51 Castlereagh Street, home duties, F, Redfern (Division of South Sydney, Sub-division of Redfern)
In 1928 Annie Titterington was the only person with that surname living at her address.