Did your Thomas William Liddle marry a woman called Jane (nee Thompson) ?
If he did, the 1921 Census shows him, Jane and children Jenny and Robert living at 13 Eppleton Terrace, Hetton le Hole. He is described as a Coal Miner, Coal Hewer age 32 years and born Hetton le Hole.
The 1918 Absent Voters List for Hetton le Hole shows a Thomas William Liddel, home address of 13 Eppleton Terrace, Hetton le Hole. He was a Private in the Yorkshire Regiment with a service number of 57593
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Yes, this is our man and finding him on the 1918 Absent Voters List is really interesting as it gives a regiment and a more definite number. I imagine the spelling of the name was very variable - I have certainly known both Liddle and Liddell in my lifetime.
My sister is going to send me a copy of the document with the number which they have, so I'll put that on here for your opinions.