Raymond Scott is probably more well known, particularly because of having been sampled by Dilla. Oram and certainly also Delia Derbyshire deserve all their due... I can't imagine how exciting it must have been to be creating these sounds that no one had heard before.

The BBC Radiophonic Workshop is more influential than they're ever given credit for, even now that the story is somewhat well known. And they were at the time too... If you're looking for 'pop' musicians who were influenced by those experiments in early electronics, check An Electric Storm by White Noise (band that featured Delia and Brian from BBC RWS), as well as United States of America's self-titled 1968 record. Both radical and timeless.