The Harrison Family
William Henry Harrison and Benjamin Harrison created the only grandfather-grandson paid that we have seen in the White House to date. The Harrison name first found it’s way into American history when Benjamin Harrison V signed the Declaration of Independence and became a Founding Father. Benjamin Harrison V later went on to have a son named William Henry who ended up becoming a U.S president. William Henry in turn had a grandson by the name of Benjamin Harrison who also ended up becoming president in 1888.

Citation
Presidents related to each other Archives. (n.d.). Retrieved from https://periodicpresidents.com/tag/presidents-related-to-each-other/