Between the wars, "Empress of Russia" resumed regular trans-Pacific crossings. Her first post-war voyage began on 10 April 1919; and the pre-war route was somewhat modified on this trip. On this occasion, she sailed from Vancouver to Manila outward bound; and she stopped at Vladivostok on the return voyage to North America from the Far East to pick up Canadian soldiers who had served at part of the Canadian Siberian Expeditionary Force during the Russian Revolution. In this period, "Empress of Russia" transported Philippine Senator Manuel L. Quezon on his return to Manila from the first Independence Mission to the US Congress in 1919.