I am trying to find my great grandmother's Giustina Lucca's family. She came from the San Pietro Valdastico/ Rotzo area of Italy to the US in 1920 with her brother, Antonio. Had a sister, Marguerite Bonato, and brothers, Giovanni, Pietro, Antonio, and Domonic(?) that all came to the U.S. They may be more siblings that stayed in Italy. Her parents were Pietro Lucca and Aloynia or Aloysia Stefani. I have been searching under the LUCCA name, but found documents that says surname is LUCA. Is the city of Lucca Italy somewhere around San Pietro? Not sure where to look to continue family line. Any suggestions?