In reply to Sean Kelly:
Sean,
This may be a legacy of the time. If you imagine the British Climbing scene of the post war, the establishment was still in charge. The best climbers had with few exceptions (Manchester university into the Rucksack Club, Kirkus and a few others), been products of public schools and then Oxbridge. I think that there was a great deal of surprise and from some, indignation when it transpired that a new generation of climbers were forcing climbing standards to a point unimaginable before the war. Due to this perhaps, it seemed important or noteworthy that Brown was a plumber when reporting on the Kanchenjunga expedition. I imagine that the rest of expeditions professions were also reported on. Post Kanch, the climbing plumber tag just stuck, not only for Brown who wasn’t a plumber, but a jobbing builder, but also for Whillans who actually was an industrial plumber. This theory has little real basis or evidence but seems plausible. A friend who knew Whillans, Nat Allen and Joe Brown well says that Whillans was always pissed off when Joe Brown was described as a plumber.
James