Leatherhead: A small town on the river Mole with a narrow main street and several old inns, notably the Swan and the Running Horse.
Waterloo: The largest and finest railway terminal in Great Britain.
Stoke Moran: Although Stoke Moran does not exist at all, "on the western border of Surrey" Stoke D'Abernon does, and in the proper location. Apparently Watson sought to conceal the full facts of the case concerning the exact location of the Roylott's ancestral house a little longer.