Thanks gibbo.
Double problem now.
Marriage 14810/1929 JOHNSTON WILLIAM J - HAMMOND DOROTHY M - SYDNEY * 13 Nov
1933 NSW Electoral Roll - West Sydney - Glebe
JOHNSTON Dorothy May, 74 Mitchell street, home duties
JOHNSTON William John, 74 Mitchell street, labourer
Eastern Suburbs Crematorium
JOHNSTON William Henry 10/11/1992 81 Ashes Taken
JOHNSTON, Dorothy May 01-12-1994 83 Ashes Taken
If one tree is correct then the Moruya one married Johnston.
I have not confirmed that yet.
Blayney is a long way away from Sydney, but so is Moruya.