Hemingway and his second wife Pauline (Pauline Pfeiffer) married, 1927–1940. They married in Paris after his divorce from Hadley. Pauline's family was wealthy and Catholic; before the marriage Hemingway converted to Catholicism. By the end of the year Pauline, pregnant, wanted to move back to America. John Dos Passos recommended Key West, and they left Paris in March 1928. They had 2 sons, Patrick and Gregory.