Sakubei Yamamoto (山本作兵衛, 17 May 1892 – 19 December 1984) was a Japanese coal miner and artist. His sumi-e and watercolour work, which was heavily annotated, depicted the life he had experienced as a miner, and a collection of his paintings and diaries formed the first Japanese entry in the UNESCO Memory of the World Register, inscribed in 2011.
Source: “Sakubei Yamamoto”, English Wikipedia (CC BY-SA 4.0), excerpt