My research has found that Grazia (Grace) Solazzo, wife of Michele Sena, came to the USA on the passenger ship S.S. Canopic on April 2, 1917. She came with her daughter, Angela (9 years old).. Grazia has a brother, Antonio Solazzo.
Michele Sena came to the USA several times on the passenger ship S.S. San Guglielmo. He had a sister (Marie) and a brother-in-law by the name of Giovanni DiGuglielmo. Michele Sena and his 14-year old son, Antonio, came to the USA for good on April 9, 1916, on the S.S. San Guglielmo.
So far, I have not found any more information on the Sena/Solazzo families in Italy. I'm not giving up!!