Thanks, grasscarp. I have been googling this for weeks - wording the question every different way I can think of - but only managed to find that particular link between Dave Clark 5 and Fat Larry's Band. Couldn't find any reference at all to Harold Melvyn being a drummer. Obviously not looking in the right places.
I would dearly like to know where you found it in 20 seconds, grasscarp. I have continued to search, but can only find that Harold Melvin played piano/keyboard.
I put the 3 names in google. Page one of the results half way down had the same question. This lead to this website and half way down gave the answer. http://www.quiz-zone.co.uk/questionsbycategory /Music/0/answers.html
When I said it took me 20 seconds I was not exaggerating.