Hello.
Would these be your lost Great Grandfathers:
Thomas Kavanagh,
Irish Guards, 1st Battalion.
Born: Co Wicklow.
Enlisted: Dublin.
Rank: Private.
No:7325.
Died: 26th Feb 1917.
Killed in action.
France & Flanders.
Joseph Johnson.
Kings own Scottish Borderers, 2nd Battalion.
Born: Newcastle.
No: 8625.
Died: 14th Oct 1914.
Killed in action.
France & Flanders.
Hope this is the correct Info that you are looking for.
arthur68.