Oume's upbringing and how she met Serizawa can be found in detail in "Shinsengumi Shimatsuki" and "Shinsengumi Ibun," which are narratives written in the Showa period by a novelist, Kan SHIMOZAWA, based on his interviews with Tamesaburo YAGI (a son of the Yagi family whose residence was used as Shinsengumi headquarters).
お梅の素生や芹沢との馴れ初めは昭和になって小説家の子母澤寛が八木為三郎（新撰組が屯所としていた八木家の子息）からの聞き書き『新撰組始末記』『新撰組遺聞』に詳しく載っている。