Goodday Catters

I wonder if anyone can help me on this one?   I'm compiling information for a CD on recently-deceased singers and songwriters and haven't been able to find Next-of-Kin info on these two.

Syd Carter was famous as the author of Lord of the Dance, Down Below etc. but googling his name doesn't reveal a website or contact address.    Sid Long was less well known but his death a year or two ago did get a lot of response here; he was a robust singer, resident at NTMC and member of Notts Alliance.

Any info on contacting their NoK would be appreciated - I suggest PM to avoid broadcasting it abroad.

Many thanks

Steve