20. Correct on Keith Butcher. Not quite Busch but Busch + er = Butcher. I'll get my coat.
34. Correct again, Michael Lowe. Swing low, sweet chariot., coming for to carry me home. And Lo, a star appeared in the East. Keeps low rather than going up.
44. Ling is part-correct but something needs to be added (a task) to get the referee I was thinking of.
There was, I recall, a referee called A Jobling, from Morecambe, I think. A fiendishly difficult clue this one!
A Job -ling is correct. Refereed the League Cup Final 2nd leg between Leicester and Stoke in April 1964 at the end of an 8 year career as a FL referee.