I have obtained a copy of Eduardo Coughlan's book on interlibrary loan. There are Claffeys in the index, and also Brackens. The book is in Spanish which obviously requires an ability to read that language in order to understand the text, but the outlines of family milestones are fairly easy to translate, and a Spanish-English dictionary helps a great deal. Let me know if you have an interest in a particular surname and I'll be glad to look it up in the index for you. If you want to initiate an interlibrary loan, the title is "Los Irlandeses En La Argentina, Su Actuacion y Descendencia" byEduardo Coghlan, published in Buenos Aires in 1987. My library was able to obtain it for me from the University of CT library. Marybeth Stevens