LOC Thesaurus for Graphic Materials
Buildings, Railroad depots, People, Groups of people, Emigration & immigration, Emigrants, Animals, Dogs, Horses, Wagons, Transportation, Rail transportation, Railroad bridges, Railroad cars, Railroad companies, Trains, Railroad tracks, Railroad trains, Cities & towns, Westward expansion, Settlers, Weapons, Guns, Firearms, Mercantile facilities, Shops, Bridges, Rivers, Steamboats, Commerce, Magazine illustrations, Newspapers