Almost two years ago I told the story of my connection to father and son engineering ancestors John and Sir John Dewrance, as I understood it at the time, including references to John Dewrance having built George Stephenson’s Rocket. Quite recently I have been assured by a learned reader that this was unlikely and that the Rocket was built by Robert Stephenson. Since my original post was primarily about the family connection, only mentioning the Rocket in passing, and in the interests of accuracy, I have updated it accordingly. I do hope this meets the concerns of anyone more interested in railway historical minutiae than in a family yarn, of interest to anyone sharing the family name.