I read this book,...I remember reading what Cole wrote about Miss Bell and the Jellyfish, Miracle Wheet etc. and not feeling particularly surprised because I had read about those things many years ago in Faith on the March. Or so I thought.
I beleive you might be referring to the book "VISIONS OF GLORY" by the late Barbara Harrison. All the above mentioned was discussed in detail in her book. It was published in 1978. Another bbok that comes to mind is " A PEOPLE FOR HIS NAME" by Timothy White (1967) I hope this helps.