I'm not sure what progress you've made on this.
However, here is some detail on this man. George was both on August 26, 1881. He enlisted on August 6, 1914 and his age is given as 33 years old. He was a Wesleyan, and he served in 8 platoon B Company. His address was 4 Russell Street, Wigan. He was known as 'Jock' Blyth. There is a discrepancy in the spelling of his surname. In many documents, his surname is spelled 'Blythe'.
From his age and the fact that he flew up the ranks, I think that he was a re-enlistment, possibly a territorial that enlisted in 1908 and left by 1912. His DCM was awarded at Galipoli. The Turkish snipers were highly effective; men stayed behind as the British line advanced. Throughout May, there were a number of men from the 1/5th battalion who were severely wounded or killed by headshots. The officers and men from the East Lancashire Division were secreted to regular battalions belonging to the 29th Division, or regular officers were attached to them for instruction on how to deal with this menace.
From a notebook belonging to a Sgt from the same platoon, George's weapon and kit number was 430.
He was suffering from dysentery and was evacuated, clearly, this was a severe case, (possibly the bacterial and viral version), and he was transferred back to the UK.
I do have an image of this man, he is in the Wigan Observer. This can be obtained by searching the online, Wigan Archive.