S.S. Vauban as the Royal Mail Lines Alcala

The Vauban was chartered by Royal Mail Lines on the Southampton - River Plate service until the Almanzora was completed, returning to the New York - River Plate service. In May of 1919 she was charted by Cunard for their Liverpool - New York service and Royal Mail briefly chartered her in 1922, she reverted back to Lamport & Holt and continued in their service before being laid up in 1930. She was eventually sold for scrapping in January of 1932 by Thomas W. Ward of Inverkeithing.

The Lamport & Holt Line was originally known as Liverpool, Brazil and River Plate Steam Navigation Company. They ran passenger services between the United Kingdom and South America, also South America to the West Indies and New York. After the sinking of the Vestris in 1928 the New York passenger service was discontinued.

In 1944 the company was purchased by the Vestey Group of companies which included Blue Star Line, Frederick Leyland & Co, and which also took over the Booth Line in 1946. From 1947 a lot of inter-company transfers of ships and temporary renaming took place, plus the formations of several groupings of companies. In 1991 the last Lamport & Holt ship Churchill  transferred to Blue Star and became the Argentina Star (2), and the name of Lamport & Holt disappeared.