Real World article
(written from a Production point of view)

In the script for the Star Trek: The Next Generation episode "Time's Arrow, Part II", Truman Williams was a judge in Boston. Guinan claimed that she came from a renowned family in this city and was a close relative of Judge Williams. In a telegram sent in response to Samuel Clemens's inquiry, who was investigating Guinan's past, the judge indicated he never heard of Guinan. She responded that there was a blood feud between two branches of the family and the judge does not acknowledge her.