County Kerry on Wikipedia.

Ballybunion, Catholic Church. From an old postcard in Reg Dosell's Collection.
Ballydonoghue, St. Teresa. Previously in the "Unknown" section. Cathy Umbers, on behalf of a friend, was hoping to get an identification for a church in County Kerry, probably near Lixnaw (though it definitely isn't Luxnaw church itself). Although they obtained the identification though other sources, I'm glad to be able to include the solution here.

Cahirciveen, the O'Connell Memorial Church (interior view only). From an old postcard in Reg Dosell's Collection.

Kenmare, Holy Cross (R.C., 1864). From an old postcard in Reg Dosell's Collection. A modern view, © Dennis Harper (2006). Link. Church at Bunane. Interior view. Both © Dennis Harper (2006).
Killarney.
Killorglin, St. James (R.C.). Interior view. Both from old postcards in Reg Dosell's Collection.

Listowel, St. John (CoI). From an old postcard in Reg Dosell's Collection.

Muckross Abbey. From an old postcard, Bulman Collection.         

Tralee, Dominican Church of the Holy Cross. © John Balaam (2008). St. John (R.C.). © John Balaam (2008).