Thanks, got the information from Ancestry.co.uk - British Army WWI Service Records, 1914-1918, shows on this as definitely Sydney Dickinson, comes up with 14 images which I believe I can't post due to copyright. Also gives correct next of kin for family members, don't think I'm reading the images wrong but you never know. His details are born abt 1892 St Pauls parish, Preston and his occupation as salesman.
cheers andy