People United States of America Ambrose Joseph Finnegan peoplepill id: ambrose-joseph-finneganAJF 1 views today 35 views this weekMaternal grandfather of Joe BidenAmbrose Joseph FinneganBiographyGallery (8)ListsAlso ViewedListsAmbrose Joseph Finnegan is in following listsBy work and/or countryNotable American peopleGender:Male, Born in:Years 1850 to 1899By categoryAmerican families of Irish ancestryBiden familyFrom our partnersSponsoredAmbrose Joseph Finnegan