"Rinchu Kenmonshu" (The Collection of Noh Anecdotes), which was issued in the middle of the 18th century, lists some performer names such as 'Jinzaemon, Genshiro, Genzaburo, and the current Jinzaemon,' and it also insists that the school was named after their brilliant drumbeats made along with the passage 'the itoku (virtue and influence) of Mii-dera Temple is satisfactory' in the Noh play titled "Mii-dera Temple."
18世紀中期の『隣忠見聞集』に「甚左衛門、源四郎、源三郎、今の甚左衛門」といった役者名が挙がり、『三井寺』の「三井寺の威徳ぞめでたかりける」のくだりで打った頭が見事であったため流儀の名としたと伝える。