Conversation so far:
How was Doris Duke's personal life?
In 1935, Doris Duke married James H. R. Cromwell, the son of Palm Beach society doyenne Eva Stotesbury. In 1947, she married Porfirio Rubirosa, a diplomat from the Dominican Republic.

Question: How long were each of her marriages?
Self-contained rewrite: How long were each of Doris Duke's marriages?