Interestingly enough, Julio Caratini Jr, also from Aibonito was on the same ship:
New York Passenger Lists, 1820-1957
about Julio Carattini Jr.
Name: Julio Carattini Jr.
Arrival Date: 27 Mar 1941
Birth Year: abt 1923
Birth Location: Puerto Rico
Birth Location Other: aibonito
Age: 18
Gender: Male
Port of Departure: San Juan, Puerto Rico
Port of Arrival: New York, New York
Ship Name: San Jacinto