I came across this entry in the ASC Journal for 10 September 1907:
1st Class S.S.M. P. G. Rice, S.Q.M.S. W. Stonyer, and Lce. Corpl. C J.
Lombard, "E" Coy., proceeded to St. Leonard's on the 6th of August, with
Head Quarters, 4th division.
I believe they might have been based at Woolwich or Colchester at the time, it's not clear from the Journal. I'm assuming that the Head Quarters 4th Division refers to an Army Service Corps division. Does anyone have any idea where this base might actually have been, what was there at the time, or why HQ 4th Div. was moving?