Re Ann MURPHY
There is a baptism at St Patrick's at Parramatta NSW in 1844. Sometimes on Roman Catholic parish registers of baptisms, a date of birth can be recorded, and names of sponsors as well.
This is for a baptism of John, born 17 February 1844 and baptised 3 March 1844 at St Patrick Church, Parramatta, a Roman Catholic service. Clergyman : Nicholas Joseph COFFEY
The register shows the father as James FRENCH,
soldier in the 99th Regiment and the mother as Ann MURPHY. ADD and in 1846, the 99th Regiment went to NZ ... a Maori War...
The Sponsors were Patrick GORMAN and Mary MURPHY.
The NSW BDM online index has the above baptism indexed and referenced as Volume 145, line 844 (of 1844). No other entries for children of James and Ann FRENCH, but there's TWO for James and Anne FRENCH, daughter, Mary Anne or Mary A ... Volume 62, line 886 of 1845 and Volume 134, line 2500 of 1845.
To add to the confusion,
Volume 62 is for a Protestant baptism and Volume 134 is likely to be a complied volume, perhaps Roman Catholic of perhaps a mix of denominations.
ADD, Mistaken info, Volume 62 is definitely Roman Catholic,
62 (Volume) 5021 (reel) 1-320 (line numbers in Volume) Bap 1845 Roman Catholic
62 (volume) 5022 (reel) 311-2641 (end) (line numbers in Volume) Bap 1845 Roman Catholic
JM mis-read her own trusty book.

Thanks to Rellies phoning me...
mea culpa But ... just because a New Zealand marriage has the bride as aged 18, does not mean the bride was actual 18. She may have believed that was her age, but it is not sensible to restrict any search for a bride to six months either side of the date of the marriage. Throughout all of the British Empire, all through the 1800s, it was lawful for girls to marry once they reached 12 years of age but if not yet 21, then, because they had not yet reached majority they did not have authority to consent to their own marriage, and so they needed consent from an adult with authority to give it ... Same for boys, although they needed to be 14 before being of a lawful age to marry, but still they could not give their own consent until aged 21 or over.
JM