The novel was about a 19th century Yankee, who travels back in time to King Arthur's court in the 6th century and caused trouble by introducing gadgets and weapons from his time. Having written this book, Clemens easily accepted the possibility that Data and others from the USS Enterprise-D were from the future, when they were in the San Francisco of 1893.
When Clemens talked with a reporter over his suspicions about Data, the reporter didn't believe it to be real and asked if this was a sequel to A Connecticut Yankee in King Arthur's Court. (TNG: "Time's Arrow, Part II")
In the holodeck program Fair Haven, hologram Michael Sullivan received a copy of this novel from "Katie O'Clare". Sullivan had never read it before. When she described the plot, saying, "It's about two people from different times who fall in love, among other things." Somewhat aware of her true identity, Sullivan joked that it sounded familiar. (VOY: "Spirit Folk")