Dear Daisymae,
I have just looked on the NSW BDM for your James. His (and Mary Ann's ) name was entered as SNEDDON
http://www.bdm.nsw.gov.au/familyHistory/search.htmReference: 3379
Year:1911
SNEDDON, JAMES 8O YRS TAMWORTH TAMWORTH
Where the parents name normally is entered, James only has 80 years Tamworth, so alas, his parents aren't entered.
Mary Ann's parents are entered however.
Reference :11214
Year :1904
SNEDDON MARY A WILLIAM MARY TAMWORTH
On their marriage certificate, Snaddon is again misspelt
Reference:3059
Year:1862
Groom:SNEDDEN JAMES
Bride:COULTON MARY ANN
Place: TAMWORTH
If you check on the BDM site, there is another SNADDON listed.
In the 1841 British Census there are 2 James Snaddon's listed living in Polmont.
James (aged 10) is listed as living with Mary SNADDON (aged 45)
James (aged 11) is living with Mary BENNIE (aged 35) along with George Snaddon (13), William Snaddon (9), Jean Snaddon (7) and Alexander Snaddon (5).
I don't know if either of these James are your man (especially considering the misspelling of his surname) but maybe some of the names will ring a bell.
Cheers
Susie