President
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First Lady
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- The biggest age difference between Presidents and their First Lady wives is 30.1 years, between the 10th President John Tyler and his second wife Letitia Tyler.
- What is the smallest age difference? It's -5.2 years between Warren G. Harding and Florence Harding. For the details, scroll down or click "Age Difference" again to sort reversely.
1. (30.1 yrs)
& (0.6 yrs)
Signature:

5. (15.8 yrs)
& (3.4 yrs)
Signature:

13. (7.9 yrs)
* Died 1 yr 8 mons 8 days before President took office.
Signature:

18. (5.5 yrs)
* Died 18 yrs 5 mons 27 days before President took office.
Signature:

37. (0.3 yrs)
* Died 18 yrs 28 days before President took office.
Signature:

38. (0.3 yrs)
* Died 2 mons 11 days before President took office.
Signature:

*President James Buchanan was never marriage and he was the only bachelor president
*His niece, Harriet Lane, was acting as First Lady during his term. (official: 16th First Lady, Harriet Lane)
