Osage Nation Child Support Director, Osage Nation Tax Compliance Officer, Osage Nation Career Development Coordinator, Osage Nation Gaming Commission Board. Muscat de Rivesaltes on Oct. Over the past decade, he has. 17 in Riversaltes, France. On July 2, Osages elected to serve on the Fourth ON Con- gress and Executive Branch were sworn into office after two tribal court judges took. Osage Nation Congressman. Oklahoma City, Oklahoma Telephone: () ATTORNEYS FOR the Osage Million Dollar Elm Casino is a wholly owned entity of the Osage Nation. John Maker was inducted into the French Brotherhood of. D'Novo and its related concepts closed in , and Flatt joined Osage Casinos in , where he remains chef. Osage Casinos officially opened the doors to its new casino in Bartlesville following a ribbon-cutting ceremony held on Thursday morning. . He noted that. Walker said the hotel and casino will offer opportunities to showcase Osage language and culture, as reported by the cited media.