Gentlemen,
Very many thanks for your individual contributions, I am hugely impressed with the guidance you have all provided.
jim1, you say that the Effects Registers for George Bateman gives him as being in the 2nd Grenadier Guards and that he died on the 11th... Ancestry.co.uk has a copy of the Effects Register which I have downloaded but whether this is all the the Effects Register is comprised of I do not know. On the Effects Registry image I cannot see anything which to me mentions whether he was in the 1st or 2nd Battalion of the Grenadiers, perhaps I am looking in the wrong place or simply misunderstanding the detail in the record. This Effects Register does say that George Bateman had a Service No. 15141. It also has a date of 12/11/14 which is the same date suggested by the CWGC, whereas your own initial comment mentions the 11th as being the more likely date of his death. I am attaching a copy of that element downloaded from Ancestry in case you are able to clarify any misunderstanding on my part.
I am thrilled to have the map which gives greater clarity to the area around Ypres, and greatly helps in interpreting the places referred to in the War Diaries.
MaxD, When you say "all his surviving records show that he was the 2nd Grenadiers etc..." are you able to say what these records might be? I did download from Ancestry the British Army WW1 Medal Rolls Index Card information for George Bateman and I have to say that having looked again in more detail it does specify George as being in the 2nd Grenadiers (in several places)!
I am grateful for the prompt regarding the various 'engagements' which will be very interesting to research.
philipsearching, As MaxD has suggested the War Diaries for the 2nd G.G's are available through Ancestry (I do have a subscription as you can judge from what I have said above, although I might still get the Kindle version of the 1st G.G's Diaries because even if George Bateman was in the 2nd G.G's not the 1st G.G's as it is immensely interesting to read all that happened.
Again, thank you all for you interest in my query, all this is compelling stuff.....
Alan