hello carla, my name is Barry McNerney, living in dublin Ireland, and can tell you the name comes only from Ireland and in particular Co. Clare in the west of Ireland. Also Francis seems to be a name that is passed down through generations as my Grandfather was Francis (Frank) McNerney, my father is Thomas Francis McNerney and my name is john Barry Francis Mc Nerney. So who knows we could be distant relations. I can also tell you that you didn't get your latin coloured skin from this side of the family as we are mainly blue eyed and fair skinned, in fact my father looks very similar to Congressman McNerney only slightly balder!!! Anyway hope this helps and Good Luck!