I'm adding these ancestors to my Ancestry tree and checking their lines on Geni, etc. I have Googled and can't find any maiden name for this Thomas' wife Ellen other than in one tree on My Heritage. His Wiki page (link added to his profile) doesn't give Sanborn as Ellen's maiden name. Also, where did the info for his parents come from? I can't find them mentioned anywhere other than here on Geni but there are no sources / documentation for the connections as shown on Geni posted in their profiles. I don't know if the one My Heritage tree with these connections copied Geni or vice versa, but those are the only two sites I've seen this info.
Thomas' Find-a-Grave page: https://www.findagrave.com/memorial/158528994/thomas-higgenson
doesn't mention his parents but does give Sanborn as Ellen's maiden name but is also unsourced.
Thanks in advance for additional addition info, sources, documentation to validate the connections here on Geni.