Lyon Gardiner Tyler, Jr., one of the two surviving grandchildren of President John Tyler, passed away on September 26, 2020, at age 95. His death occurred 175 years after his grandfather left the White House in 1845.

If you know one fact about the 10th President of the United States, it's likely that his grandchildren have survived well into the 21st century. This was a result of the Tyler men fathering children late in life.

John Tyler was born in 1790 and became president in 1841 following the death of William Henry Harrison. In 1853—eight years after leaving office—Tyler became a father to Lyon Gardiner Tyler at age 63. Lyon Sr. was one of 15 Tyler children.

Lyon Sr. also had children in his later years. His sons Lyon Gardiner Tyler, Jr. and Harrison Ruffin Tyler were born in 1925 and 1928, respectively.

In addition to his brother, Lyon Gardiner Tyler, Jr. is survived by his daughter, three nieces and nephews, and eight great-nieces and nephews. Harrison Ruffin Tyler is now the only surviving grandchild of a U.S. president born in the 18th century.