Since the landlord of the Cat played for and was even the captain of the Ambridge team I think it unlikely that he lived in Darrington. It was local enough for Eddie to shift there whenever he got banned from the Bull, and Kate to work there and be utterly unreliable. But like the garage, it was never put onto a map of the area as far as I know.
Nothing whatever comes to mind about the beer they served, though.
It’s possible that there are people with longer memories than mine whom you could ask:
There is a board called Mustardland or Peet’s which has been going for a while, at Mustardland - Mustardland They might be helpful. And you won’t have to join the board, because it accepts Guest posts.
umra also has long-memoried people at it. Not sure how easy it is to post there, but they are at https://uk.media.radio.archers.narkive.com/