The origin of these kenjutsu forms are not clear other than it was a part of SMR from the beginning of the tradition, unlike the assimilated arts of Uchida-ryu, Ikkaku-ryu, Ittatsu-ryu and Isshin-ryu.
The tradition came to be known as Shintō-ryū kenjutsu in the mid-19th century[2] by research made into the history of SMR by the SMR-practitioner Umezaki Chukichi.
The discovery of the name "Kasumi" Shintō-ryū was made from recent research by the SMR-practitioner Kaminoda Tsunemori, a direct student of Shimizu Takaji[1] and leader of the Nihon Jodokai-group.
This research has not yet been verified by independent sources, but the Kasumi designation has been used within Kaminoda's own organization to label the 12 kenjutsu forms.
The forms as given in Pascal Krieger's book Jodô - la voie du bâton / The way of the stick :[1]