Cheers John!
Of all the titles you have listed, I recognise maybe half a dozen. Turkey in the Straw has hung on in there as a tune rather than a song. And Little Liza Loves You, if it's the same song, has morphed into Little Eyes, I Love You down in Cornwall, where it turns up regularly at singarounds, (honey, honey, honeeeey..)
BBC4 shows reruns of Top of the Pops from the 60s when it started, and some of the stuff on there was quite rightly never heard of again, apart from the repeat of course. They do say that the cream rises to the top, and gently floats there, waiting to be skimmed off.