Father: Edward Duffy
Mother: Norah nee Malley
Denny:
You did not provide any specific information but I did locate an 1876 marriage near Galway city between Edward Duffy and Honor Malley. Nora would be a variant name for Honor. Is this the couple in question?
Roger McDonnell
See third record for 1876 marriage https://civilrecords.irishgenealogy.ie/churchrecords/images/marriage_returns/marriages_1876/11161/8088878.pdf