[3] His sons became quintessential mobo, or "modern boys"—the sobriquet coined to describe the young, sophisticated, up-to-date young men who frequented the fashionable Ginza district in the late 1920s[4]—and they shared a fascination and persistent attraction to photography as an art form.

[5] The two brothers were founding organizers of the Japan Photographic Society (日本写真会[6], Nihon Shashinkai) in 1924; and Shinzō was its first president.

[7] The organization was a major pre-war influence on Japanese photography and still exists today despite a temporary dissolution during the years of the Pacific War.

[11] Three Fukuhara leaders in the Shiseido hierarchy were: Arinobu served as the third president of the Japan Pharmaceutical Association (日本薬剤師会, Nippon Yakuzaishi Kai), 1907–1909.

[13] The commissioned house was designed and built in 1920, but the site near a hot spring left the building vulnerable to the cataclysmic 1923 Great Kantō earthquake which collapsed it.