Wow!
Firstly thank you for the welcomes and a big thank you for the replies and taking a look. There is already a lot to unpack here.
Can you please list all the information on this birth certificate. It will have good information about the parents.
What other BDM certificates do you have for the people you are researching?
Where and when did your grandfather Thomas James QUINN, born 1918, marry?
Where and when did he die?
Unfortunately I have zero certificates for anything so I know that is not the most helpful. I can always ask family but suspect I would have to obtain them myself.
However the information added by Essie in post 10 is correct. I haven't been able to find the date, it does seem to be locked away on genealogysa though. After 1943 it would seem as Margaret was still a Chant but likely before 1948.
From Genealogy SA
https://www.genealogysa.org.au/resources/online-database-search
Sth Aust Births
QUINN Eileen Monica F Thomas QUINN Norwood 960/259 1915
QUINN Thomas James M Thomas QUINN Norwood 14A/285 1918
Sth Aust Marriages
QUINN Thomas Beatrice Adelaide 262/597 1915
This marriage certificate should give you more information.
That is probably more accurate as I have Eileen's DOB as 1916.
Agreed if I can find the cert it would be helpful. Definitely going to register at genealogysa as it looks like there is plenty of info there. Maybe.
Welcome to Rootschat.
My resources have four QUINN children with the same mother named Beatrice Cecilia QUINN and only two recorded with the father's name.
Dorothy Beryl b. 31 May 1911 Adelaide
Father: [unrecorded]
Sylvia Imelda b. 20 Mar 1913 Adelaide
Father: [unrecorded]
Eileen Monica QUINN b. 4 Jun 1915 Rose Park
Father: Thomas QUINN
Thomas James QUINN b. 1 Mar 1918 Rose Park
Father: Thomas QUINN
South Australian Marriages
Groom: QUINN Thomas age 26, Father Edward.
Bride: QUINN Beatrice age 22, Father not recorded
Date: 9 Mar 1915
Place: St Patricks Church Adelaide
District: Ade / Book/Page: 262/597
Essie
Thank you for the welcome.
OK so Dorothy Beryl is new to me, possibly she didn't make it but gives a link as to why my family only ever knew Beatrice as Beryl.
And a again I had Sylvia down as 1914 plus the Imelda is new info too.
Also the marriage info adds their ages and church to what I had so that corresponds to a few things as well.
Thanks