International Boy Scouts, Troop 1 1963 and 1965 he was awarded the first of the Korea Scout Association's distinguished service awards, also called the Silver Cuckoo, in 1966. Mittwer participated as a staff member at the 12th World Scout Jamboree in 1967 in Idaho, U.S.A. and, at the conclusion of the Jamboree and in connection with the 21st World Scout Conference held in Seattle, Washington, he was presented a Scout Friendship Certificate by the WOSM in recognition of his contribution to international Scouting. He initiated an exchange program between the Incheon District of the Korea Scout Association and the Kanagawa Council of the Boy Scouts
American Boy Scouts left the ABS in 1910 and formed the New England Boy Scouts. On March 12, 1911, the Rhode Island group voted to break away from the American Boy Scouts and formed the Rhode Island Boy Scouts. The ABS joined the Order of World Scouts in 1911. In August 1911, General Edwin A. McAlpin was elected national president and Chief Scout. In March 1912, an ABS Scout in uniform shot and killed a boy with a rifle after a Scout function. Remington Arms designed the 4S Boy Scout Rifle and advertised it as the "Official Rifle of the American Boy Scouts"