Barltrop,20, and Jenner,30, registered at Wokingham, Berkshire, the right area for Theale so it might place them on DE920
CWGC has an Ethel Glover,19, and she is on the register age 19, at Biggleswade, Bedfordshire, the right area for Tempsford
I found 2 Sidney Thompson's (no other initial). One aged 49, registered at Scunthorpe, the other,age 35(closer to CWGC) registered in York. York is a puzzle as it was split up into several areas now in E Yorkshire and many just N of the River Humber. Geographically these cover Brough, just W of Hull, but it is not mentioned by name.
Rogers didn't come up