Looking for ancestors

My name is Laura and I'm searching for any family related to Vicente or Vincenzo Scarella, Jose Cayetano or Guisseppe Scarella, Beatriz Graciani, Gratiani or Graziani, Luis Graciani Gratiani or Graziani, Catalina Rossi, Clementina Gremaldi or Gremaghi. My great grandmother was Josefina Beatriz Scarella de Padilla. She was born in Guadalajara,Mexico but lived in Monterrey, Nuevo Leon. My grandmother Josefina Acosta, who is her daugher is 94 and I'm desperate to find some information about who her maternal family was because she doesn't remember due to old age. Thank you in advance for any help.