Use of B sets in 1950s/60s in the Thames Valley

Hello All,

My layout Lower Thames Valley is an interpretation of the Relief Lines and the start of the High Wycombe Branch at Maidenhead in 1960/2.

I have a couple of B sets but cannot find in the carriage working diagram book any use of them in the area in my timeframe, but does anyone have any evidence of their use ?

I am thinking of using one pair with perhaps a Hornby Collett suburban in between.

Any thoughts or information would be appreciated?

Hope you are all well and keeping safe,
Best regards
Paul