I have found the person I was looking for. She is digging the Cusson files out - including a great photo or two of the man himself. As soon as I hear back from her I'll get the two of you into direct contact. Mr. Cusson, it seems, was quite a sport and her file on him gave a goodly amount of information.
If you don't hear from me right away do not hesitate to send me a firm reminder.
Glad I could help (potentially?!).