I have found an Agostino Sicari that came over from Messina on the Neustria in 1902. He was 21, making him born circa 1881.
He traveled with my great grandparents and my great great grandparents, who were coming to visit their brother/sons (respectively) Giovanni and Pasquale Zappala. Agostino listed Pasquale Zappala as his cousin. So did Ignazio Crimi and Marianna Ventura (looks like Ventura), which might make them cousins of each other as well.
This is new connection for me, and I'm interested in finding out more.