By the way, the author is a Japanese.
She speaks Japanese too (and some German and Spanish in addition to being fluent in Mandarin, Cantonese, and English).
I'll send it along to her, thanks.
http://www.dai3gen.net/epage7a.htm
Dr. H. Matsumoto's paper is available in English at "The Japanese Journal of Human Genetics" Vo. 13, No.1, pp 10-19,1968. The title is "Gm factors in Japan:Population and Family Studies with statistical appendix."