Aha! That would explain it. By 1963, Lou was already well known generally in the folk world. But I was not aware of anyone at Oxford describing him as ex-Heritage. I'm sure that in his day he sang all the time and no less than any 'officer'. I realise now who 'yrlancslad' is. He studied at Ruskin and was a Heritage stalwart in my time.

Being an 'officer' involved no more than writing letters and signing cheques. It briefly got me in trouble with the Proctors (University Police) because I couldn't supply them with a constitution. A back-of-an-envelope response was quickly accepted. They were really only concerned that there should be a Senior Member nominally supervising the finance. There was nothing in the constitution to say that the President, Secretary and Treasurer should be members of the University. So in before and after the writing of the constitution Lou Killen could have been an 'officer'. Perhaps he was. The Proctors didn't even mind that the Heritage Committee was not elected but co-opted.