Irene Audrey
CRONIN does not appear on any electoral rolls with her husband at the same address. Did they separate early in the marriage? There is a Cyril Frederick CRONIN on the 1949 NSW electoral roll, but really no way of knowing if it is Irene's husband.
Marriage
CRONIN Thelma Audrey
NEWING John William
1939 Reg#12927
Australian Electoral Roll
1954
NEWING Thelma Audrey, 34 Oak Street, Hawthorn HD
NEWING John William, 34 Oak Street, Hawthorn Mechanic
John's WW2 service record
http://www.ww2roll.gov.au/script/veteran.asp?ServiceID=N&VeteranID=1149903Death
NEWING Thelma Audrey
Father Cronin Cyril Mother Irene
At Balwyn 62 years 1981 Reg#07382
John died in Apr 1987 and both he and Thelma were cremated at Springvale and their ashes scattered. Irene CRONIN was also cremated at Springvale and her ashes scattered.
http://www.deceasedsearch.com/index.phpNames of any issue of Thelma and John's marriage should be detailed on Thelma's death certificate.
Information on Victorian certificates
http://www.rootschat.com/forum/index.php/topic,373754.0.htmlImages of certificates can be purchased online [$17.50] and immediately downloaded.
https://online.justice.vic.gov.au/bdm/index-search?action=purchaseImageHopefully Thelma's death certificate will give you some leads to further your search for descendants.
Cheers
Cando