Hi again Caomhanach
A couple of weeks ago I went on a guided tour of Flaybrick Memorial Gardens (Cemetary) and the guide mentioned a WW1 soldier buried there who had been a member of the Birkenhead Bantams (Cheshire Regiment) and had been in Ionic Street School.
So when I went to the Town Hall yesterday I asked at the Wirral Archives. The lady there was very helpful and said they did not hold the records for the Military Hospital there but she looked in a book about Rock Ferry where she found an article on Ionic Street school. She gave me a photocopy of the pages which was just a bit of history and pictures of the school. It mentions "On December 3rd 1914 instructions were received at 11.57 am to close the school at once as it required to house the second battalion of the Bantams".
What I don't know is, whether there were any other soldiers housed there as well as the Bantams.
If John George Thomas died during the war his details may be on the Commonwealth War Graves Commission site.
Here's another site I think would be very useful to you, you could put a request there, the people are very helpful (as well as Roots Chatters!).
Here's the link -
http://1914-1918.invisionzone.com/forums/Hope this helps. Don't give up!
Regards
Neptune