Number of children fathered by John Tyler, the most of any U.S. President - 15 John Tyler became the 10th president of the United States in 1841 — and today - incredibly - he still has two living grandchildren. One of his children, Lyon Gardiner Tyler, born in 1853, fathered Lyon Gardiner Tyler, Jr. in 1924 and Harrison Ruffin Tyler in 1928, according to Sherwood Forest Plantation the home of President Tyler. |