Thank you so much to the kind person who sent me Bernie O'Neil's contact details.

He sent me a prompt reply. His book is out of print but he does have some copies available to purchase. There is also a copy available in the Eton College Library, UK.

However it can be accessed and read online here: http://contentdm.lib.byu.edu/cdm4/document.php?CISOROOT=/FH6...

Wonderful!

Regards,
Tamsin Birch