Thelma Masters was born on 28th June, 1927.
When Thelma was aged eight, her mother died. For a while, Thelma, her brothers and her father moved in with her grandmother at Parklea, but then moved back to their original home. This left a large amount of household work and cooking to 10 year old Thelma. After leaving school at 14 and working for a time at Bonds, Thelma met her husband at the Quakers Hill Country Women's Ball and they settled in Quakers Hill.