| Children |
| | 1. TREWIN Leslie Smythe, b. Abt 1912, Newport VIC , d. 1912 (Age ~ 0 years) |
| | 2. TREWIN Edith May, b. 1913, Newport VIC  |
| | 3. TREWIN Daphne Jean Mavis, b. 30 Jun 1915, Cowleys Creek VIC , d. 29 Dec 2002, Bethlehem Hospital, Caulfield VIC (Age 87 years) |
| | 4. TREWIN Mervin Herbert, b. 1917, Crossover VIC , d. 10 Sep 1947, Warragul VIC (Age 30 years) |
| | 5. TREWIN Angus Duncan, b. 1918, Camperdown VIC , d. 9 Nov 1987 (Age 69 years) |
| | 6. TREWIN Alice Florence, b. 1919, Emerald VIC (Age 106 years) |
| | 7. TREWIN Victoria Joyce, b. 19 Nov 1922, d. 28 Dec 1943, Dandenong VIC (Age 21 years) |
| | 8. TREWIN Lenore B.M., b. Abt 1925 (Age ~ 100 years) |
| | 9. TREWIN Kenneth John, b. Abt 1929, Emerald VIC , d. 26 Oct 1979, Morwell VIC (Age ~ 50 years) |
| | 10. TREWIN Edward Thomas Chester, b. 12 Jul 1930, d. 15 May 2007, Warragul VIC (Age 76 years) |
| | 11. TREWIN Malcolm George, d. 1921, Emerald VIC  |
| | 12. TREWIN Betty Lorraine, b. 10 Sep 1931, Orbost VIC , d. Orbost VIC  |
| | 13. TREWIN Geoffrey Allen, b. 1933, d. 1939, Carlton VIC (Age 6 years) |
|