Premise: George Palmer Putnam (September 7, 1887 – January 4, 1950) was an American publisher, author and explorer. Known for his marriage to (and being the widower of) Amelia Earhart, he had also achieved fame as one of the most successful promoters in the United States during the 1930s.
Hypothesis: George Palmer Putnam never married again after his divorce with Amelia Earhart