I have recently composed a pdf (with source links) referencing this genealogical conundrum where two identically named couples were in residence and raising families in early 19th century Ballynabuck, North Dingle Peninsula, Kerry, Ireland.

Assignment of progeny birth records is extremely problematical but those with Connor (O'Connor) and/or Murphy roots in that time/place may find it to be of interest...

http://trees.ancestry.com/tree/14683157/person/1207012102/st...