I am also lucky enough to have a copy of the birth certificate for my great grandmother. It shows her name as Negri Maria Caterina (Last name first). Not sure about the name order because I had thought her first name was Caterina…. Maria is pretty common in our family. My middle name is Maria also and one of my grandmother’s sisters was Maria (or Mary). From what I can tell it shows her father as Giacomo and mother as Pizzetti Maria Francesca – showing she was born November 18, 1874. the 1950 date at the bottom is unusual. I almost think maybe that was the date it was issued. Maybe this was a copy my great grandmother got while getting citizenship here in the US….