I'm interested in the history of football/soccer and I came upon the book "The encyclopedia of world soccer" by Richard Henshaw. There are some interesting statements in this book that I wanted to use for a private project. This left me wonderingwho the author was. Anyone knows if he really is/was a historian? I wonder if he had some authority on soccer/football history? Or was this just a hobby effort.

Google Books link to this book: https://books.google.be/books/about/The_Encyclopedia_of_World_Soccer.html?id=pHtYAAAAYAAJ&redir_esc=y

I found some other books (not on football) of a historian with the same name, but I'm not sure if this is the same person.