. . "1942-09-15"^^ . . . "11028"^^ . "1942-09-15"^^ . . . . . . . . . . . . . . . . . . "William Charles Ocker"@en . . . . . . . "8246478"^^ . . . . . . . "William C. Ocker"@en . . . . . . . "Ocker circa 1910\u20131915"@en . . . . . . . "Washington, D.C."@en . . . . . . . . . . . "William Charles Ocker"@en . . . . . . . . . . . . . . . . . "Colonel William Charles Ocker (June 18, 1880 \u2013 September 15, 1942) was an American aviation pioneer. He was known as the \"Father of Instrument Flying\"."@en . . . . . . . . . . "1880"^^ . "1880-06-18"^^ . . . . . "1942"^^ . . . . . . . . . . . . . . . . . . . "Colonel William Charles Ocker (June 18, 1880 \u2013 September 15, 1942) was an American aviation pioneer. He was known as the \"Father of Instrument Flying\"."@en . "1880-06-18"^^ . "1118322796"^^ . . . . . .