- Other name: Kansuke (勘介)
- Japanese: 馬詰 柳太郎 (Mazume Ryuutarou}
Mazume Ryûtarô Joined the Shinsengumi around the 5th month of 1863. He deserted the Shinsengumi with his father Mazume Shinjûrô during the 6th month of 1868}. It is unknown what became of either of them.
References
- Shinsengumi Zentaishi Tettei Guide (新選組全隊士徹底ガイド) Maeda Masaki