Jim Carroll
I didn't spend my life recording the last of our old singers in order that they should be confined to archives - I hoped to pass it on to others who I thought might get something from it - arguments like this have shown me I am wasting my time
Possibly constantly insulting the very people who might be able to help you is not the best way of going about it.

This sheds some interesting light on the matter -
http://www.mustrad.org.uk/articles/pardon2.htm
Scroll down to the Introduction.
This is a nice read as well -
http://www.eatmt.org.uk/walter_pardon.htm
The Wikepedia entry for Walter Pardon is worth a look -
https://en.wikipedia.org/wiki/Walter_Pardon