London to Hong Kong

Submitted by Ramjet on

My grandfather traveled from Hong Kong to San Francisco on a business trip in November/December 1919.  From SF he traveled to New York ...I believe by train.  From New York he took a Cunard ship, Carmania, to London, arriving in June 1920.  He eventually returned to Hong Kong but I have no record of what route he took on his return voyage.  I assume he did not return to NY, etc.  He must have traveled by ship via the Suez Canal or around Africa.  Can any one suggest what his likely route would have been from London to Hong Kong.  I have been unable to locate his name on a ship's register.  Thank you for your assistance.

Roger Remedios