It is described in the record of the former Komagatani village issued in 1941 that 'a small child called MINAMOTO no Yoshinao is the founder of Ishibashi,' and Mr. Ishibashi who currently lives at Tsuho-ji Temple is his descendant.
昭和16年発行の旧駒ヶ谷村々誌に「幼子源義直は、石橋の祖である。」との記載があり、現在、通法寺在住の石橋氏は、この子孫である。