Hi Sandy
If you wish to purchase the birth record for "Margaret Anne McGRATH - 1875" from NZ BDM, I've added the reference number here. We always recommend that you obtain the
"pintout" copy of the registration (as opposed to the actual certificate) as it tends to offer more information (and happily is less expensive - $20 odd NZ. )
NZ BDM reference1875 / 9758- McGRATH - Margaret Anne - Parents: Margaret Jane and Peter MCGRATHNOTE: Unfortunately an 1875 NZ Birth record will only give you the following information.
Name of child / date and place of birth / Father's name and occupation / Mother's name and maiden name / name and, sometimes the address, of the person registering the birth / date and place of registration. However, from the year
1876*, further info is included - e.g. the places of birth of the parents / their ages / and the place and date of their marriage.
re: (Mother) Margaret / Margaret Jane McGRATH (alias TURNER etc. )I'm picking it's going to be a mission of sorts to find further for this woman.

To date we have a variety of names ... with the only indication of her birth year so far coming from the 1866 NZ marriage - Matilda McCoy / Peter McGRATH when she was apparently aged 30 (born c. 1836).
It seems likely that the Peter Stephen MCGRATH who died in Sydney in 1946 (s/o of a Margaret and Peter) is possibly the chap of same name born at Rangiora NZ in 1877.
Just a suggestion ... but by purchasing his NZ birth record "printout" also, you would get the additional information relating to parents (as explained above *) ... which in turn may assist with tracking (mother) Margaret.
1877 / 4578 - McGRATH - Peter Stephen - Parents: Margaret and Peter ~ Lu