The details about Tomoari himself are included in Tojiro YAMAGUCHI's literary work (1933) before the War, UENO's various writings, and furthermore SUGIMOTO's writings (1985 to 2006).
伴存自身については、戦前の山口藤次郎1933、や上野の諸著作、さらに杉本1985→2006に詳しい。