President John Tyler was born in 1790 and served in office from 1841-1845.
He has two living grandchildren.
Wait. That would
almost be impossible. Even if he had his kids at 70, he'd have had his child in 1860. If his child was 60 when giving birth, the grandchild would be born in 1920. So the grandchild would be 97. Those ages of becoming a parent seem a bit old though.
*edit*
I had to look it up. WOW.
from Wikipedia
Tyler is the earliest former president with a living grandchild, having one living grandson through his son Lyon Gardiner Tyler. Until some time around 2016, Tyler had two living grandchildren, prior to the death of grandson Harrison Ruffin Tyler, who was born in 1928. Lyon Gardiner Tyler, Jr., born in 1924, is Tyler's last surviving grandchild.Lyon (1853–1935). So Pres Tyler was 63 when Lyon was born. Lyon's wife had children when he was 71 and 75.
Thanks for sharing Barb. That is amazing.