Tyler had the most children of any President: like 15.

But, more remarkably, John Tyler has Grandchildren still living:

Here's the most amazing thing you'll ever read about our 10th president:

John Tyler was born in 1790. He took office in 1841, after William Henry Harrison died. And he has two living grandchildren.

Not great-great-great-grandchildren. Their dad was Tyler’s son.

HOW IS THIS POSSIBLE?

The Tyler men have a habit of having kids very late in life. Lyon Gardiner Tyler, one of President Tyler’s 15 kids, was born in 1853. He fathered Lyon Gardiner Tyler Jr. in 1924, and Harrison Ruffin Tyler in 1928.

Tyler, the President had a son when he was 63 years old. His son had a boy when he was 71 years old, and another at age 75....both of whom are living today in 2016.