Brockhaus-1911: Humboldt · Humboldt [2] · Pelly River · Platte River · Orange River Colony · Miami River · Minnesota River · Snake River · Swan River · White River · Saint Mary's River · Red River · Rock River · Ruperts River · Black River · Canadian River · Cape Fear River · Back River · Big Black River · Big Horn River · Fall River · Flint River · Green River · Clarke's River · Croton River · East River
DamenConvLex-1834: Humboldt, Freiherr von
Eisler-1912: Humboldt, Wilhelm von
Herder-1854: Humboldt [2] · Humboldt [1] · Red River · Grand River
Meyers-1905: Humboldt River · Humboldt [1] · Humboldt Range · Humboldt [2] · Humboldt-Vereine · Humboldt-Stiftung · Humboldt-Akademie · Detroit River · Coppermine River · Copper River · East River · Fall River · Escambĭa River · English River · Big Black River · Big Blue River · Big Horn River · Bear River · Altemaha River · Back River · Batavia River · Cape Fear River · Clinch River · Connecticut River · Canadian River · Black River · Black Warrior River · Calumet River
Pierer-1857: Humboldt River Mountains · Humboldt River · Humboldt [2] · Humboldt-Berg · Humboldt Lake · Humboldt [1]