Welcome to the forum Sam!
Let's do my list, since it appears to be all the rage. Doing these without reference to the Baker, surprisingly hard. Added some brief descriptions of where some of these places were for the benefit of those who don't know Herefordshire and East Radnorshire very well

:
A: Almeley
(closed in the 1950s, about 6 miles away, on the Titley Junction to Hay line)
B: Bucknall
(on the Heart of Wales)
C: Cilmeri
(slightly closer than Colwall, on the Heart of Wales)
D: Dolyhir
(station for the limestone quarry, also closed by 1955)
E: Exeter St. Davids
(I can't think of anywhere near here beginning with E!)
F: Fulwell
(as the crow flies I reckon it's closer than Forest on NET, not checking now)
G: Great Malvern
H: Hereford
I: Ickenham
(it comes to mind but without getting the Baker out I can't tell where it is!)
J: Jewellery Qu.
(miles away, but again the closest one I think of)
K: Kington
(about 150 - 200 yards away from my house, it closed in 1955
)
L: Leominster
M: Malvern Link
N: New Radnor
(about 6 miles up the road, closed 1955)
O: Oldham Mumps
(Oakham might be closer, I'm not going to check right now)
P: Presteign
(about 6 miles away, closed in the 1950s, spelt as it was at the time)
Q: Quorn & Woodhouse (GCR)
(ages away, but it's probably closer than Queen's Park)
R: Radcliffe
(until I check out the Baker, this is left from Miles' list)
S: Stanner
(about 3 miles up the road)
T: Titley Junction
(about 3 miles from here as the crow flies, closed in 1955)
U: University (Birmingham)
V: Vauxhall
(OK, 152 miles away, but closest I can think of!)
W: Worcester Foregate Street
X
Y: Ynyswen
(on the Treherbert line)
Z
This was a lot harder than I thought it would be, but I've stuck to my guns and not used the Baker for any of the above.