Just finished reading
Guests of the State : The Story of Allied and Axis Servicemen Interned in Ireland During World War II by T. Ryle Dwyer. What, at first appears to be just about the crews that were interned, ends up being a great analysis of the difficult position that the Irish State was in over the long years of the war, with poilitical pressure from both within and from outside to join either side.
It also highlights how personality played a major part in the political conflicts.
At the end of the day, one actually believes that the Luftwaffe internees behaved much better than the Allied ones. But don't think this is a dry book. There are some great, and sometimes hilarious, stories of escape attempts. And the case of the American pilot was ordered back to Ireland by his superiors because he had broken parole and hence had not acted like a gentleman.
This site was invaluable for filling in the gaps on the technical details like serial numbers, outcome of crews etc:
Aircraft Landings Ireland 1939 - 1946