'Q' is Arthur Quiller-Couch to whom Helene Hanff ,in this autobiography of her road to 86 Charing Cross ,attributes her real education to. SO now I've found a reasonable copy of Quiller-Couch's biography, which is mentioned by Hanff. The below book is almost done and it has lead me to a few more books to find. She is like me. I love memoirs, letters, and biographies.
"It was an awesome legacy for a Cambridge don to have conferred on a lowly pupil he never knew existed three thousand mile away." ( pg. 56)