Although Lewis Railton snuck in a mention earlier, his wife Marjorie hasn't so far (her 1973 obituary is in BCRA bulletin 2). I missed her in 1948, when I previously posted this link:
Peter Binns "with a number of others including Aubrey Glennie, Lewis Railton, and Marjorie Railton established an alternative speleological organisation in late 1946 / early 1947, the Cave Research Group, which was probably why he (and others) were expelled from the BSA in August 1947."
archives.bcra.org.uk
Peter Binns "with a number of others including Aubrey Glennie, Lewis Railton, and Marjorie Railton established an alternative speleological organisation in late 1946 / early 1947, the Cave Research Group, which was probably why he (and others) were expelled from the BSA in August 1947."
BCRA Online Archive
British Cave Research Association - Online Historical Archive: The Peter Binns collection