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Teddy Roosevelt and FDR Were Not 5th Cousins with Matching Lifestyles

“Franklin and Teddy were 5th cousins. Teddy was a Republican. Even though he had poor health, like his cousin, he kept up a vigorous lifestyle, too. He fought in the Spanish American War. He was a supporter of our National Parks. Franklin D Roosevelt is a three time president who lifted us out of the Great Depression and through WW2. Truly remarkable.”
False
Confidence: High Checked on June 24, 2026

Summary

Franklin and Theodore Roosevelt were indeed fifth cousins, and Theodore was a Republican who fought in the Spanish‑American War and strongly supported the national‑park system. However, Franklin D. Roosevelt was elected four times, not three, and the claim about both cousins’ poor health is not substantiated by the sources. Consequently, the statement

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Sources 60 searched

nps.gov
guides.loc.gov
archives.gov
  • “I Am Entitled to the Medal of Honor and I Want It” | National Archives

    His charge up Kettle Hill, even though he insisted it was San Juan Hill, conjures a heroic image that will likely never fade with time. Theodore Roosevelt will always be remembered as the embodiment of the Spanish-American War, a significant historical event that he called the "time of my life."(48)

en.wikipedia.org
  • Roosevelt family - Wikipedia

    The progeny of a mid-17th-century ... New York, rose to global political prominence with the presidencies of Theodore Roosevelt (1901–1909) and his fifth cousin Franklin D....

  • Franklin D. Roosevelt - Wikipedia

    Roosevelt's father died in 1900, distressing him greatly. The following year, Roosevelt's fifth cousin Theodore Roosevelt became US president. Theodore's vigorous leadership style and reforming zeal made him Franklin's role model.

vitabrevis.americanancestors.org
  • The closest presidential kinships - Vita Brevis

    Following up on my earlier post on the Roosevelt family, I noted that Presidents Theodore and Franklin Roosevelt’s kinship by marriage was the closer way they connected, as their closest kinship by blood was that of fifth cousins.

janeaustensummer.org
  • Kissin’ cousins: 6 couples in history who were related

    Yes, President Franklin Roosevelt and first lady Eleanor — who helped guide the nation through the Depression and World War II — were in fact · fifth cousins, once removed. Former President Theodore Roosevelt, Eleanor’s uncle, gave the ...

skeptive.com
history.com

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