Trying to find

[MaxD]

The dates are from the medal card of 2219 Sapper Alfred G Harris.  The South Midland
 Field Companies were originally formed in Gloucestershire**.  2/1st, which became 477 Field Company, went overseas on 6 Jun 1915 with 48 Division (not 61 as I put earlier - a mis-read).
They served in France until end October 1917 when they went to Italy where they stayed for the remainder of the war.  He was promoted to 2nd Corporal (a unique RE rank) at some time.
There is a war diary for the Jun 15 to Oct 17 period although it would be highly unusual to find him named.  http://discovery.nationalarchives.gov.uk/details/r/C7354595
Unfortunately no sign of a service record.

MaxD

** Don't read too much into that, the associations with localities played no real part in deciding a man's unit except in the obvious case of "Pals" infantry units mostly. (For the pedants - this is a simplification to divert attention from my citing of the origins of the unit.)

[Brewins girl]

Have you tried the National Archives ? I have just 'found' my grandfather
 who was also a Sapper with the Royal Engineers in WW1.