After the War, Before the Jets
Holland America nearly ceased to exist during the Second World War. The German occupation of the Netherlands in May 1940 meant that most of HAL's fleet was either seized, sunk, or serving as troopships under Allied command. By 1945 the company was rebuilding from nearly nothing, reconstructing a fleet to serve a transatlantic route that still mattered and still had passengers who needed to cross.
SS Westerdam entered service in 1946 as part of that reconstruction — one of the postwar ships HAL commissioned to restore the Rotterdam-New York service that had been the company's reason for existing since 1873. She sailed in the years between the war's end and the jets' arrival, a window that was shorter than anyone expected at the time. In 1958 BOAC flew the first commercial transatlantic jet service. Within a decade the ocean crossing by ship had changed from a necessity to a luxury, and the economics of running transatlantic liners changed with it.
Westerdam sailed that window and did her part in it. For a generation of postwar passengers — returning veterans, emigrants starting again in America, Dutch families visiting children who had settled abroad — she was simply the ship that made the crossing possible. The transatlantic liner era is gone now, and its last years are forgotten by most people, but those who traveled them remember the size of the ocean and the time it took to cross it. The Westerdam was there for some of those crossings.
— In the Wake editorial