You can order the detailed birth certs for whichever family members you're interested in from the General Register Office http://www.groireland.ie
and click on "apply for cert". The detailed birth certs will provide the exact birth locations (if the online records are the Index records, Tralee is the registration district and that includes about 600 towns and townlands).
You can contact the Church of Ireland Archives in Dublin to identify what religious parish registers survive for Tralee and how they might be accessed:http://www.ireland.anglican.org/?do=information&id=36
You can also order the 1901 census microfilm for Tralee and see if any family members are listed then. The census microfilm can be ordered through your nearest LDS Family History Centre.