Hi Jen,What would have happened he would have been Dispatched to another Regiment.If he Fought in France.My GRANDFATHER was in the Royal Munster Fusiliers.He was Transferred to a Regiment in Worcester And Given a New Number.

The reverse could have happened,This is Maybe why you were unable to find

Normally Military records list any Regiment he would have served in.Via First ww Record index Cards.If he fought in France He would have been issued with Campaigne Medal plus the victory medal.

When he went back to oz.Would  have had Discharge papers.He may have later re enlisted..

 

Hope you can follow where im Going

 

Mike