Hi Wivenhoe
The certificate of marriage between William Douglas Shennan and Jessie Struthers in Balmain, NSW, on 13 October 1880 does not cite the parents or place of birth of either party.
However, William Douglas Shennan's petition for divorce filed in Melbourne, Victoria, on 15 January 1936 is extremely comprehensive, citing the place of birth of William as Kirkcudbright, Scotland, and that of Jessie Struthers as Blantyre, Scotland.
Cheers,
Rodeo