An instructor of Niten Ichi-ryu in the Kuroda domain, Minehira TACHIBANA (Hokin TANJI) wrote a Musashi's biography "Heiho Taiso Bushu Genshin-ko Denrai" (Biography of Marvelous Patriarch of Art of Warfare, Esquire Musashi Harunobu), and in that book a legend is found about Musashi's fights with the Yoshioka as well.
黒田藩の二天一流師範、立花峯均が享保12年（1727年）に著した武蔵の伝記『兵法大祖武州玄信公伝来』にも、吉岡家との伝承が記されている。