Are there members in people's ancestry who claim to have seen Jesus, or witnessed His acts?

Historians/writers were able to get written accounts of Jesus's life and acts from the eyewitness accounts of people who had seen Him during His lifetime. It occurred to me that I have not seen or heard claims from people in this lifetime (or a few previous) stating that their ancestors met or saw Him, whether based on story passed down or diary/journal documentation. I know there's got to be an obvious reason, but I'm stumped on why not?