Hey Deagol, on Tolkienbooks.net you have the following three references:

Oxford Mail, 1966: http://tolkienbooks.net/php/details.php?reference=53450

Weekend Guardian, 1991: http://tolkienbooks.net/php/details.php?reference=53456

Bonham's Catalog, 2007: http://tolkienbooks.net/php/details.php?reference=53453

All three contain similar quotes from an interview between Ezard and Tolkien. From your descriptions, it is not clear if the Weekend Guardian extracts and Bonham's extracts are the same as each other (but differing from Oxford mail extracts), or are the same. Can you help clarify?