Hi,
I was in at my Family History rooms today and they hold the NSW Baptism records on microfilm, I had a quick look for the baptism's for Sarah Binks and found 2 registrations.
Roman Catholic, Parish of St James, County of Cumberland.
No 594,
Christian name: Sarah
Parents: Sydney Binks & Grace Lee.
Abode: Castlereigh St.
Age: 18 months.
When baptised: 7th April 1850.
Parish of St Lawrence, Sydney, County of Cumberland.
No 2287
Child's Christian name: Sarah.
Parents Christian name: Sydney (dec'd) & Grace.
Parents surname: Binks
Baptised: 2nd Jamuary 1853
Born: 20th December 1849.
Abode: Castlereigh St.
Profession: Labourer.
Marriage
NSW Presbyterian Marriage Solenmized in the Parish of St Andrews Scots Church, County of Cumberland in the year 1836.
Presbyterian Church of Scotland.
Thr Reverend John McGarvie of Sydney. Minister of St Andrews Church do certify that
Sydney Binks, bach'r of Sydney, labourer and Grace Lee, spinster of Sydney were joined in wedlock by me on third day of October 1836 at Sydney after Banns in the presence of William Green and Mary Shuttleworth.
both signed with their X mark.
Signed
John McGarvie
Some info on John McGarvie
http://adb.anu.edu.au/biography/mcgarvie-john-2399Regards
Gerry