In 1910, the sisters purchased and renovated ‘Wenona’, a large residence of a local bank manager on Lane Cove Road (now Pacific Highway), and by 1911 it functioned as a fully operational hospital.
A major extension to the Mater Private Hospital was built on Sinclair Street Wollstonecraft in 1929.
[3] An adjacent Mater Maternity Hospital was built between 1939 and 1942[4][5] and an obstetrics training school was established.
In cooperation with Our Lady of Mercy Home at Waitara, unwed or destitute women were sent to the Mater to provide care before and after the birth of their babies, and from here, adoption also occurred.
[3] With increased government funding, the Mater became a public institution in 1946 and, in 1968, a teaching hospital, linked to the University of Sydney.