There is a tree on ancestry has her father as James Clabby and who's WW1 service record records him as James Tully alias James Clabby which may be the reason I can't find a birth record on ScotlandsPeople for a Nora Clabby born 1906. There is a birth registration for a Norah Tully but it is 1904 Dennistoun.The tree says Nora's mother is a Mary Ann McCrae. This information is on Nora's marriage record to Grose.
As SS says: check the thread below before researching her back story; this thread is concerned with her history after moving to Canada.https://www.rootschat.com/forum/index.php?topic=890845.msg7647699#msg7647699
Her birth date matches with this out going passenger list Nora Grose birth date 4/11/1906 (married )Address came from 156 Dundee Street Edinburgh Departure 29 July 1955 Scotland Destination Montreal Rosie