Greetings,
I work for Geni and we were contacted by someone on the Internet (not a Geni user) with the following correction, for your consideration:
"This page cannot be correct. This has a Margaret Lyon as the daughter of Henry Winthrop and Elizabeth Fones Winthrop. Henry Winthrop was a son of John Winthrop. He and Elizabeth are well documented to have had just one daughter named Martha, who married a different Lyon and settled in New York, not Connecticut."