Andy, no address of informant, but John's father is William Gibson, a baker, and he died when John was a boy. Stepdad is Alexander so not him either.
I had actually started tracing the clockmaker family, that was my costly mistake I referred to previously
. Never found any link to my Gibsons who are a family of Bakers (John's generation were the first that weren't due to their father dying so young. They followed the stepdads profession.)
I think I have to assume it's a mistake. Just wanted to be sure I had the right father for Isabella as I've some discrepancies when I go down that route. I'll start a new thread for that on the relevant board!