Several major newspapers published obituaries of J.L. Carr. I have added a link if they are available on line or a link to a scan of the ones that I have. Please let me know if you know of any others.
J.L.Carr, The Times, 2nd March 1994. See scan here
J.L. Carr, The Daily Telegraph, date unknown. See scan here
Remembering J.L. Carr, The Spectator, 12th March 1994, page 32. See scan here
JL Carr - a True Provincial Character, The Bookseller, 25th March 1994
Quince tree son, possibly in The Observer, 27th February, 1994. See scan here
Leading writer dies, aged 81, Evening Telegraph (Kettering), 28th February, 1994. See scan here
J.L.Carr, The Guardian, possibly 28th February, 1994. Same as in The Independent, below.
J.L.Carr, The Independent, 28th February, 1994, see external link.