The Welsh Regiment.
The Commonwealth War Graves Commission has 8085 recorded WW1 deaths for the Welsh Regiment.
The word "Welch" was not used in the name until 1920 although the CWGC use the word on many of the regiment's headstones, as shown below.
POWELL,
Charles.
Private, 291535.
The Welch Regiment.
Larpool Cemetery, Whitby, Yorkshire Uk.
Wednesday 14-03-1917.
Charles.
Private, 291535.
The Welch Regiment.
Larpool Cemetery, Whitby, Yorkshire Uk.
Wednesday 14-03-1917.