Hyozo Omori (大森 兵蔵, Ōmori Hyōzō; March 14, 1876 – January 3, 1913) was a Japanese physical education specialist who studied in America and married the American artist Annie Barrows Shepley. In Japan, they established Yurin En (友隣園; House of the Friendly Neighbor), which was a settlement house and leader in the Japanese playground movement. Omori introduced basketball and volleyball to the country and was the team manager at the 1912 Stockholm Olympics in Sweden.
Source: “Hyozo Omori”, English Wikipedia (CC BY-SA 4.0), excerpt