there's an allocation list for 1945 at the back of the LMS Engine Sheds book (vol 4):
Templecombe has 634, 698, 1251, 1406, 3356, 3792, 3198, 3248, 3260, 4146 and 4417.
Highbridge has 1298, 1307, 1322, 1346, 1371, 3194, 3216 and 3218.
an excellent book, worth getting.
edit: you have it already! :-)
cheers,
Keith