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Brockhaus-1911: Ottawa · Ottawa [2] · Pelly River · Platte River · Orange River Colony · Minnesota River · Red River · Snake River · Swan River · White River · Rock River · Ruperts River · Saint Mary's River · Miami River · Black River · Canadian River · Cape Fear River · Back River · Big Black River · Big Horn River · Clarke's River · Flint River · Green River · Humboldt River · Croton River · East River · Fall River
Herder-1854: Ottawa · Red River · Grand River
Meyers-1905: Ottawa [1] · Ottawa [2] · Ottawa [3] · Copper River · Coppermine River · Clinch River · Connecticut River · Detroit River · Escambĭa River · Fall River · East River · English River · Bear River · Big Black River · Big Blue River · Altemaha River · Back River · Batavia River · Calumet River · Canadian River · Cape Fear River · Big Horn River · Black River · Black Warrior River
Pierer-1857: Ottăwa