Zenjirou Yamamoto

山本善次郎, Sanae Yamamoto (山本早苗), Toda Sanae
Born in 1898 Chiba. Yamamoto began producing animations after being invited by Seitaro Kitayama. Before the war he created many works commissioned by government offices. After the war as many artists of his generation left animation Yamamoto spent his life supporting the industry with Toei Doga. Source: https://animation.filmarchives.jp/en/writer24.html