Don, you may find some of the ships on-line.
Before West India Fruit and Steamship Company, Seatrain Lines (the operating name for the Over-Seas Shipping Company) shipping by using entire loaded rail cars between ports in the United States and Havana, Cuba, with the first shipment in December 1928 aboard a specially designed ship, Seatrain. This original ship, later renamed Seatrain New Orleans, was capable of carrying 95 fully loaded rail cars.
The company built two larger specialized ships in 1932, Seatrain New York and Seatrain Havana with greater rail car capacity. In 1939 two more ships were added, Seatrain Texas and Seatrain New Jersey.
The original 1928 shipment aboard Seatrain caused a labor issue that foretold similar issues later with container ships when Cuban stevedores demanded that they not only unload the rail cars from the ship but unload and repack the rail car contents before turning the cars over to Cuban railways.
In 1951 Seatrain Lines added two additional railcar carriers, the Seatrain Georgia and Seatrain Louisiana. That year Seatrain also ceased operations to and from Cuba, and renamed its ship Seatrain Havana to Seatrain Savannah to reflect the suspension of service. In 1953 Seatrain sold its operating authority to trade between the US and Cuba to the West India Fruit and Steamship Company, along with its first ship, the Seatrain New Orleans, which was renamed Sea Level. West India Fruit & Steamship Company already had been in operation from 1946.