Festina lente!
The number you asked about, T/309046, was an ASC number allocated to men involved in the horse transport element of that corps. There is no evidence that he was commissioned.
There is no connection found with the Manchesters.
That said, I was intrigued from the start of this. The influx of men, mostly, but by no means all, ASC and some sergeants, to 10th Fusiliers seemed a bit odd. Many had (dare I say it) foreign sounding names, many returned their medals after the war to be "adjusted", more than one (but I haven't trawled them all) has a reference on his medal card to an Intelligence/Interpreters Officers medal list that can be seen on Ancestry but which has a number of pages missing - the names refer to pages that aren't there.
I would go along with Regorian's thought that the regiments may, in some cases*, have been a way of covering up their real purpose in life but think it would be a mistake, given the lack of evidence and the unlikelihood of any ever being found relating to specific men, to go straight for a specific element of the campaigns such as the Russian campaign. Interpreters would have been in equal demand in the immediate post war occupation force in Germany.
MaxD
*Some cases because there are some who served early enough to have the 1914 or 1914/15 Star with their first regiment named well before the probable time frame of the transfer of men to 10 RF.
