Hello
I recently picked this old book up at a secondhand bookshop, and thought I'd post some info here in case it will be of help to someones research. Called Co-Partners' Magazaine, Vol V 1915 it is an annual of the Gas Light & Coke Company. This company was London based with works, offices and showrooms all over London, the main works being at Beckton East London.
This edition of the magazine, while providing info on the company, is basically a war record of its employees for the year. At 350 pages it has tons of military photos (portraits, at the front, platoon groups, barracks, training, work etc), "Letters from the Front", Injury Reports, War reports of all kinds, a Roll of Honour with photos and profiles, photos of the Company's Men with the Colours etc etc.
I hope it might be useful to someone and although the index isn't the best I'd be search out information if you'd like. I've included a few images to give you an idea of what it contains.
For a full alphabetical list of those mentioned, click the link below ...
http://members.lycos.co.uk/biker999/Regards
Biker