In message
ilgate.org, Troy
Steadman writes

I've read "Epsom's Hospital Railway" by R. I. Essen several times (it's
in all the local libraries) and although it is a good book I could
never reconcile his rather crude diagram to the geography of the area.

His route for the Horton line matches my 1932 Bartholomew's atlas of the
area pretty exactly. Unfortunately there is absolutely no sign of the
original Long Grove line in that atlas.

--
Paul Terry