Shimpei Nakayama (中山 晋平, Nakayama Shimpei; March 22, 1887 – December 30, 1952) was a Japanese songwriter famous for his many children's songs (warabe uta) and popular songs (ryūkōka) that have become deeply embedded in Japanese popular culture.
Source: “Shinpei Nakayama”, English Wikipedia (CC BY-SA 4.0), excerpt