Which of these men did not marry a person who was his first cousin?

Franklin D. Roosevelt (January 1882— April 1945) is an individual who did not marry someone who was his first cousin. He was married to his 5th cousin once removed, Anna Eleanor Roosevelt. He was born in Hyde Park, New York and died in Warm Springs, Georgia). He served as the 32nd president of the United States (1933–45). He was the only president elected to the office 4 times. He led the US through two of the greatest crises of the 20th century: the Great Depression and World War II. He had to greatly expand the powers of the federal government through a series of programs and reforms known as the New Deal. He served as the principal architect of the successful effort to rid the world of German National Socialism and Japanese militarism.

H.G. Wells, the author of “Island of Dr. Moreau” and “The War of the Worlds”, married his first cousin in 1891. He and Isabel Mary Wells were married and then divorced a mere 3 years later.

Famed physicist Albert Einstein married his second wife, Elsa Lowenthal, in 1919 in one of the oddest cousin pairings ever. They were first cousins on his mother’s side, as well as second cousins on their father’s side. She was born Elsa Einstein; the Lowenthal surname was one she got from her first marriage.

Charles Darwin, a naturalist and author of “On the Origin of Species”, married his first cousin Emma Wedgwood. They had 10 children together. He was worried that their relationship was the reason that 3 of their children died very young.