Hi, I came across this msg and I hope to give a little help. It's my understanding that they went back to Terrasini, Sicily and died there. I can't find more info than that. There is a file card image that reads:
Names of Persons in Entry: Leonardo Tocco
Subject Title: Removal under GO 169 St Louis
Other Person 1: Rosa Orlando
Date: 16 Jun 1931
INS Reference Number: 55,770-729
Roll Content Description: Recommendations - School Certificates
Roll Number: 24
Archive Publication Number: Subject Index to Correspondence and Case Files of the Immigration and Naturalization Service, 1903-1952
I don't know what the line 'Removal under GO 169 St Louis' means. There were other people with different surnames on the card.
Sorry I can't be of more help,
Gary Nach