A couple of books you may enjoy
 

SKYWAYS BYWAYS by John W.E. Newby.
This book is highly recommended and covers 14 years of Avro York operations, 8 years of Handley Page Hermes and three years of Lockheed Constellation ops. It also covers Dakota and Avro/H.S./B.Ae. 748 operations with Skyways Coach Air.
If you wish to have further details please email me. Not cheap but top quality never is.
SKYWAYS AT LYMPNE by Dick Gilbert.
Covers from the inside Skyways CoachAir from 1955 to 1971 in great detail and not a little humour of the times !
If you wish further details please email me.
Hope you enjoy as much as I have,
Be lucky
David

I actually read Skyways Byways couple of years ago. Great book! I'm going to check out Skyways at Lympne too. Do you have any other suggestions, Avgas?