The card you have is his SWB index card - the actual roll entry is as follows:
2nd Lieut. Timmons, T. King's Liverpool Regiment
Badge Number 291216
Address: Fordstown Kells, Co. Meath, Ireland
No other information on the Roll entry.
There would not appear to be any other medal card - so he may well not have served abroad, possibly he fell sick in the UK and was subsequently discharged. His file - if it is his - at the NA should help resolve the question.
jds1949