Sievers was one of only nine players to don the uniform of both the original and expansion Washington Senators teams, the others being Don Mincher, Camilo Pascual, Pedro Ramos, Johnny Schaive, Zoilo Versalles, Hal Woodeshick, Rudy Hernández, and Hector Maestri.
Roy Rogers | Roy Orbison | Roy Lichtenstein | Roy Thomas | Roy Haynes | Roy Clark | Arundhati Roy | Roy Jenkins | Roy Carr | Roy Dupuis | Rob Roy | Roy E. Disney | Roy Castle | Roy Barnes | Roy Jones, Jr. | Roy Harper | Roy Blunt | Siegfried & Roy | Roy Scheider | Roy Lassiter | Roy Hargrove | Roy Chapman Andrews | Roy Williams | Roy Thomas Baker | Roy of the Rovers | Roy Hattersley | Roy Emerson | Roy Acuff | Reena Roy | Roy Romer |