Thank you for your "welcoming" comments earlier in this thread. It is inevitable and encouraging that contributors become familiar with each other which makes for an easy atmosphere.
Sticking to the thread., there is an interesting thesis available on Malcolm Williamson here:
http://eprints.utas.edu.au/10819/, and a discussion of his cassations including examples here:
http://www.composerhome.com/resources/more/analysis.html. I have found similar articles on Cowen and Mackenzie.
Reading back my first post, I see I must brush up on my typing skills!
I first became interested in lesser known composers, when back in the 70's I discovered a shop off Charing Cross Road, selling Melodyia imports including Kalinnikov, Medtner, Glazunov, Myaskovsky, Krein and so on. Little did I know that last year I would stumble across a forum like this. For those of long standing, and I have no idea how long this forum has existed, it is probably difficult to recall the excitement of such a treasure trove, on a subject that so much engages me.