Just One

A few years ago I found and noted a story that noted how the earliest-serving president with living grandchildren was Prexy #10, John Tyler. Because both he and his son had the habit of begetting children late in life, there were two living grandsons for Tyler, even though they had obviously never met him .

Late last month Lyon Gardiner Tyler, Jr., passed away at the age of 95, leaving his brother Harrison, 93, as the last surviving grandchild of John Tyler. The three generations of Tyler men stretch across four separate centuries, with John being born in the 18th century (1790), his son in 1853 and his grandsons in 1925 and 1928 and surviving into the 21st century.

Unless of course they're members of the long-lived Howard Families, in which case there's no telling how long they may last.