The Reference Desk/Tribe of Gum

Can those of you who get Doctor Who Magazine before the rest of us please keep a very close eye on Hunters of the Burning Stone? We need to be very cautious about declaring the Tribe of Gum to be the "same one from An Unearthly Child" — because the word "Gum" does not appear in either the serial or the novelisation. As far as we know, right now, our article at Tribe of Gum is actually wrong, and it should not be assumed, on the sole basis of the picture at right, that this story retroactively gives the name "Tribe of Gum" to the tribe depicted in the serial.