Hi there,
My grand parents were Albert and Florrie Finnigan, and my great grandfather was Thomas Finnigan. They're all from England the U.K.. I have the information on how the Finnigan family name got started. I got that from the Historical Research Center. I'll give you a message of everything they gave me. Just let me know if you'd like it. It doesn't give the name of relatives, it explains how the name got started a LONG time ago in Ireland.