There is a possible Bolger/Barnaby marriage that might fit your clues :
 Name: Josephine Margaret M Barnaby
 Registration district: Naas
 Event type: Marriage
 Quarter and year: Jan-Mar 1945
 Volume : 2 / Page: 252
 Name: Patrick Bolger
 [same references as Josephine]
A marriage cert would show more details such as father's names and occupations, to confirm that this the correct Patrick Bolger, and also help the search for Josephine's family.
I've removed details of the child you mentioned as the birth is too recent and details of living people may not be posted on RootsChat. You can search the BMD index for possible matches for her birth - see the introduction topic link below. (The BMD Index includes mother maiden name from the late 1920s, which makes it easer to locate the correct references)
see :   
Introduction to Irish Records  Ordering Certs from GRO Roscommon  Details included on a Marriage CertShane