Related by context. Frequent words. (Click for all words.) 46 Abraham Lincoln 45 Abe Lincoln 45 Honest Abe 43 Lincoln 40 Twain 39 Mark Twain 39 Custer 38 Roosevelt 38 Carl Sandburg 37 Remnick 37 FDR 37 Paul Bunyan 37 Meriwether Lewis 37 Theodore Roosevelt 36 Tubman 36 railroads 36 Pony Express 36 Fairmount 36 Longfellow 36 frontiersman 35 Railroad 35 Remington 35 railroad 35 Law Olmsted 35 Calvin Coolidge 35 Tilden 35 steamboat 34 Civil War 34 Kooser 34 Teddy Roosevelt 34 Founding Father 34 Natchez Trace 34 Ulysses S. Grant 34 Billy Goat 34 Little Bighorn 34 Churchill 34 Amelia Earhart 34 riverboats 34 Gettysburg 34 Natural Gas Pipeline 34 Prospector 34 log cabin 34 Johnny Appleseed 34 Medora 34 Edgerton 33 Franklin Roosevelt 33 Elkhorn 33 Sublette 33 Bunker Hill 33 Meade 33 Monticello 33 Cather 33 interstate highway 33 transcontinental railroad 33 steamboats 33 Michener 33 Railcar 33 Coolidge 33 McCook 33 International Harvester 33 Antietam 33 Galesburg 33 Sesquicentennial 33 Ralph Waldo Emerson 32 Calamity Jane 32 Zephyr 32 Pimlico Special 32 Harriet Beecher Stowe 32 Whig 32 Winfield 32 Ponca 32 Lincolns 32 Kemper 32 Keeneland 32 Mencken 32 steam locomotives 32 Seabiscuit 32 Frederick Douglass 32 Roosevelts 32 Eisenhower 32 Kesey 32 Iron Horse 32 Bicentennial 32 Pawnee 32 Stockyards 32 Welles 32 Benjamin Franklin 32 Paul Revere 32 Trail 32 Santa Fe Trail 32 Galena 32 Studebaker 32 Franklin Delano Roosevelt 32 Quincy Adams 32 Erie Canal 31 Lyndon Johnson 31 Annie Oakley 31 Gen. Ulysses S. 31 Boonville 31 Krehbiel 31 Underground Railroad