Following on from my previous post of 1st December 2019, regarding the research paper entitled:

‘The diffusion routes of Jiu-Jitsu to and in the U.S. since the turn of the last century to 1930s: Focus on the transfiguration and succession of Jiu-Jitsu by the two Americans’
By YABU Kotaro (2012) (Ritsumeikan University, Japan)

Yabu states that two Americans;, Risher W, Thornberry and John J. O’Brien studied Jigō Tenshin-ryū Jūjutsu (剛天 真流柔術) in the Nagasaki foreign settlement and then returned to the U.S.A..

As I mentioned previously, Jigō Tenshin-ryū Jūjutsu (剛天真流柔術),is an off-shoot of Ryōi Shintō-ryū Jūjutsu (良移心当流柔術)

I posted pictures from Thornberry’s book (on 1st January 2020).

Below,I have included pictures from O’Brien’s book:

’A Complete Course in Jiu-Jitsu and Physical Culture' by Prof John O'Brien (1905).

My thanks Jonathan Jeffer for the PDF version of this book.