Hello Mack,
Thanks for that. Only an (hopefully) educated guess, I think 2130 was probably time expired in 1915. It would be pushing it a bit I think if he was wounded in May and repatriated by August 1915. He was only starting down the casevac chain in May, he hadn't even left Belgium.
The conditions for repat were probably at their most stringent at that time and if he was fit enough to rejoin in the KORL and also later to transfer again to the RE I don't think he would have fullfilled the criteria for repat. If he was that badly injured that he did qualify for repat and had to be discharged it just seems improbable that he was fit enough to rejoin a year or two later.
If I am correct that leaves just 604 as the most probable. What do you think?
Charlie