Scout Association of Hong Kong were in total 155 members in the first census. During World War I, many Scouting leaders served in the war, which limited Scouting in Hong Kong, but the 1st World Scout Jamboree between 30 July and 8 August 1920 revived Hong Kong Scouting. Lieutenant-Colonel F. J. Bowen returned to Hong Kong after the end of the war, and actively participated in the Movement. He became the Colony Commissioner in July 1920 and reorganised the Hong Kong Branch. At the end of 1920, membership was approximately 140 members. The reorganised branch held a Scout Rally at the Murray Parade Ground on
International Boy Scouts, Troop 1 The Troop joined with Japanese and American Scouts on September 24–25, 1949 in Tokyo for the first postwar All-Japan camp held by the Boy Scouts of Japan to celebrate the reorganization of the Japanese Scout association. The camporee was organized with the cooperation of the American occupation forces, who had formed their own Scout troops. It was held at Doolittle Field, now called Hibiya Koen, in Tokyo. The Boy Scouts of Japan were readmitted as a full member of the WOSM on June 30, 1950. In July the IBS joined the Kanagawa Scouts for a camporee to celebrate the Japanese