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