McGuinness Family

Hi, I was hoping to get some help in finding my ancestors. My grandad told my dad before he died that his family originated from Kilkenny, my grandads dad Christopher mcGuinness was born in 1890 or about that. There was also meant to have a hotel which was ran by my grandads auntie, as she asked him to help her run it when he was younger. I think the auntie couldn't have children which is why she asked my grandad. Thanks in advance, Hayley