looking for list of past dual of the giants champs 1970's

Can anyone help. I'm looking for info on past winners of "The dual of the giants" Royal Albert Hall, London, for the 1970's. Does anyone have an old program from the nineties with a past winners list? Appreciate the help. :)
I now also have Linda Dean and Vernon Brock 1977. Sammy Stopford also won it in the 70's and possibly the Lisa James and her brother won in that decade, but I don't know the years? :headwall:

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