I'm a 7th cousin 1x removed from Elliott Richardson through Justinian Holden. We are related through others as well, but wikitree only appears to do one line. His several times great grandfather was Samuel Richardson. Samuel was brother to my several times great grandfather, Ezekiel Richardson. Both Richardsons were founders of Woburn, MA and both came from Westmill, Hertfordshire along with 3rd brother, Thomas Richardson.