WE could be connected!! I had a quick look at the Carrigtwohill website.
I got some info from the Mallow Heritage Centre,including the 1911 census which shows:
David FitzGerald (57), Farmer, married (11 Feb 1882), born County of Cork
Bridget (52),wife (nee Colman)
Bridget (18),daughter (became a nun)
David (14),son (moved to England)
John Joseph (11),son (my father,moved to England)
Agnes (9),daughter (moved to England)
11 children were born to Bridget 10 still living
Other children shown in Parish baptism register are:
Do you have any connections?