Since in the Showa era a famous writer, Ryotaro SHIBA used "Yoshioka-den" as a material to write "Shinsetsu Miyamoto Musashi" (The True Story of Musashi MIYAMOTO), "Yoshioka-den" became famous and it is often mentioned as an important record by the Yoshioka against records by the Musashi.
この史料は昭和になり司馬遼太郎が小説『真説宮本武蔵』の題材にしたことから、有名になり武蔵側の記録に対する吉岡側の記録として紹介される機会が多い。