Actually, the first records I remember playing on the family gramophone were by The Chipmunks and Lonnie Donnegan. I was a child of sophisticated taste.
I'm not sure about the first record I bought. I think it was an L.P. by Spike Milligan called "The Best Of Milligan's Wake". From about the age of twelve, I was into comedy albums....Milligan, The Smothers Brothers, Shelley Berman, Victor Borge, Bob Newhart.
I did buy the occasional "pop" record, "Whiter Shade Of Pale" being one I can remember. Hmm. I've just recalled buying "Macarthur Park" by Richard Harris. Like I said, a child of sophisticated taste.