South Australian Marriages, Registrations 1917-1937 Groom: Herbert John NEWTON Bride: Daisy Rita ROUND Date: 1930-08-30 Groom Age: 21 Status: S Groom's Father: Albert John NEWTON Bride Age: 20 Status: S Bride's Father: Benjamin Henry ROUND Place: St Lukes Church Adelaide District: Ade Symbol: S Book/Page: 324/457
And the death of this wife who it seems did not marry again.
South Australian Deaths, Registrations 1916 to 1972 Daisy Rita NEWTON Date: 1969-04-17 Age: 58y Status: D Relative: Herbert John NEWTON [H] Residence: Mansfield Park Death Place: Mansfield Park District Code: PtA / Book: 66A / Page: 2498
Children are unlikely to be named on a death certificate. Birth records are only to 1928 in SA.
The maiden name of Daisy was definitely ROUND not BROWN. South Australian Births Registrations 1907 to 1928 Daisy Reta ROUND Date: 1910-06-03 Parents: Benjamin Henry ROUND & Harriet STRATTON Birth Place/Residence: [Parkside] District Code: Ade / Book: 845 / Page: 200