Hi there,
Do you have a copy of the birth registration for Elizabeth FLOOD, likely the youngest of John and Mary FLOODs children. Her birth is noted at NSW BDM as in the Grenfell District, and I can see a likely infant death the following year for Elizabeth FLOOD registered at Forbes.
Grenfell District Birth 1872 # 7390
Forbes District Death 1873 # 4107 .
If you do not have a copy, may I suggest you consider obtaining an official transcription. It should provide you with details about Elizabeth’s parents and all her older siblings.
Re her parents: I would expect a full official transcription to include

her full name, sex, date and place of birth (so you learn where her parents were living at the time of her birth),

her Mum’s details, including her full name, maiden name, age, occupation, place of birth. Same for her father’s details.

(of course, when Mum is the informant it is likely her details, given first hand to the clerk to record, will be fairly accurate, same when Dad gives his, but it is important to learn which parent actually registered the birth, to in turn decide who much ‘weight’ to put on the accuracy of the info provided.

You will also get the date and place of parent’s marriage (so you can check how good a memory for the informant) and the names and ages of the living children of the marriage, and the gender of those who had succumbed before Elizabeth’s birth. (Again, a good way to test the accuracy of the memory of the informant).
Remember that by 1870s, it is likely the verbal info given to the clerks when registering the births will be given in an admin process
that is familiar to both the parents and to the clerks, afterall, civil registration had commenced in 1856, and it seems there were quite a number of children listed on the 1886 dc.
The informant for his death in 1886 was his son John Flood. who was a second dealer in Forbes.
Have followed the places where all his children were born.
James b 1853 Sydney,
Catherine b 1854 Sydney d 1854 Parramatta,
Mary b 1856 Syndey,
Annie b 1863 ?
John b 1866 Carcoar,
Margaret b 1869 ?,
Elizabeth b 1872 Grenfell d1872 Bushmans Lead District of Forbes.I have also posted info on Natalie’s thread about the British Army in NSW 1840-1850 re John FLOOD aka CAHILL.
http://www.rootschat.com/forum/index.php?topic=673628.0RChat thread re NSW BDM and Official Transcription Agents (cheaper, comes by email attachment, quicker, same info as real deal certs)
Transcription Agents
http://www.rootschat.com/forum/index.php/topic,300394.0.htmlCheers, JM