| Name, Place, or Title |
Born |
Died |
Noted |
| Dake, Crowley P. (US Marshal, Arizona Territory) | - | - | 29, 43, 52 |
| Dakota War (1862) Minnesota | | | 52 |
| Dakota, Territory of | 1861/9 | 1889/44 | 05, 09, 25, 49 |
| Dale Evans "Queen of the West" (Radio, Movie and TV Star) | 44 | 6 | 06, 27, 37, 44 |
| Dallas Weekly Herald (Newspaper) | - | - | 01, 27 |
| Dallas, TX | - | - | 01, 05, 14 |
| Dalton Gang, The (Outlaw Gang) | | | 19, 28, 37, 40, 48 |
| Dalton, Emmett (Bank Robber) | - | - | 40 |
| Dalton, Frank (Deputy Marshal) | - | 48 | 48 |
| Dalton, Grattan "Gratt" (Bank Robber) | - | 40 | 40 |
| Dalton, Robert Reddick "Bob" (Bank Robber) | - | 40 | 33 |
| Dalton, William Marion "Bill" | - | - | 13, 19, 20, 23 |
| Daly Gang | - | - | 05, 06 |
| Daly, John (Outlaw) | - | 6 | 06 |
| Dana (Movie Star) | | | 49 |
| Daniels, Ben | - | - | 02 |
| Daniels, Billy (Deputy Sheriff - Tombstone) | | | 49 |
| Daniels, Edwin P. (Deputy Sherriff) | - | 11 | 11 |
| Dark Command (M) 1940 | | | 27 |
| Dart, Isom "Nigger Isom" (TGG) | | | 40 |
| Darwell, Jane (Movie Actress) | | | 49 |
| Daugherty- "Arkansas Tom" (DG) | | | 35 |
| Davenport, Gypsy (Madame) | | | 0 |
| Davis Faction (Porum Range War) | | | 34 |
| Davis, A.J. "Big Jack (Stage & Train Robber) | | | 36, 45 |
| Davis, Gail (Movie Star) | 40 | 11 | 11, 37, 40 |
| Davis, George | - | 24 | 24, 42 |
| Davis, Jacob (Tailor) | | | 20 |
| Davis, Jefferson C. (Colonel) U.S. Army | - | - | 15, 19 |
| Davis, Jefferson Finis (President of the Confederacy) | 22 | 49 | 07, 22, 49 |
| Davis, Lillie (ratted The Wild Bunch to Wm. Pinkerton , 1901 | - | - | 0 |
| Davis, Maude (WB girlfriend allowed at Robbers Roost) | - | - | 0 |
| Davis, Rufe (Movie Actor, Sidekick) | - | 50 | 21, 50 |
| Davis, William | - | - | 47 |
| Dawes Act, The (1887) | | | 06, 08, 25 |
| Dawn on tthe Great Divide (M) 1942 | - | - | 48 |
| Day the Cowboys Quit, The (Novel) 1971 | | | 34 |
| Days of Buffalo Bill (M) 1946 | - | - | 18, 49 |
| De Cora, (Dietz) Angel (Indian Artist) | 18 | 6 | 06, 18 |
| de Fiennes, Henri (see: Hathaway Henry) | | | 0 |
| de Mille, (DeMille) Agnes George (Choreographer) | 38 | 40 | 38, 40, 42, 48 |
| de Portilla, Col. Jose Nicolas | | | 13 |
| de Urrea, Jose (Mexican General) | - | - | 13 |
| Deacon (see: Miller, James B.) | | | 0 |
| Dead Man's Hand (Aces and Eights) | - | - | 31 |
| Deadly Companions, The (M) 1961 | | | 52 |
| Deadwood (TV) 20?? to 2006 | | | 35 |
| Deadwood Dick (Nat Love) #1 Cowboy | 1854 | 1921 | 06, 22, 26, 27, 28, 34, 40 |
| Deadwood, SD) | | | 01, 27, 30, 38, 39, 49 |
| Deal, (Dehil) Pony [Charles T. Ray] (T, Cowboy | | | 01, 12 |
| Deane, Jarvis "Joe (Photographer) "an eye for the shot" | | | 37 |
| Dean, Eddie (Edgar Dean Glossup) [Movie Star] | 28 | 9 | 09, 27, 42 |
| Dean, Mack | - | - | 39 |
| Deas, Charles (Painter) 1840's | - | - | 0 |
| Death Valley | | | 0 |
| Death Valley Days (TV) | - | - | 13 |
| Death Vallley Scotty (Walter Scott) [Miner] | - | 28 | 28 |
| Deer Trail, CO | - | - | 27 |
| Deger, Lawrend "Larry" (Marshal) | | | 02 |
| DeHavilland, Olivia (Movie Star) | | | 41 |
| Dehner, John (Radio Actor) | | | 47 |
| Delaney, Bill (Outlaw) | | | 13 |
| Delano, Gerald Curtis (Western Painter) | 15 | - | 15 |
| Dement, Dan (Outlaw) | | | 04 |
| Dennis, William (Winner) | - | - | 22 |
| Deno, Lottie (Gambler) | 1844 | 1934 | 0 |
| Denver & Rio Grande Western RR | 1870 | 1988 | 11, 15, 35 |
| Denver Republican, The (Newspaper) | | | 21 |
| Denver, CO "The Mile High City" | | | 11, 14, 17, 26, 38, 49 |
| Deputy, The (TV) 1959 to 1961 | - | - | 32 |
| DeQuille | | | 0 |
| Deseret News (Mormon Newspaper - 1850) Salt Lake City, UT | | | 24 |
| Desert Passage (M) 1952 | - | - | 36 |
| Desert Valley (Movie) 1926 | - | - | 48 |
| DeSmet, Father Pierre-Jean (Black Robe) | 05 | 21 | 05, 0 |
| Desmond, Pat | - | - | 0 |
| Desperado's Outpost (M) 1952 | - | - | 34 |
| Desperat Trails (M) 1939 | - | - | 32, 46 |
| Destry Ride Again (Novel) 1937? | | | 19 |
| Destry Rides Again (M) 1937 | - | - | 32 |
| Devil's Rope, The (Barbed Wire) | - | - | 47 |
| Devil's Tower | | | 39 |
| Devine, Andrew Vabre "Andy" "Jingles" (Movie Star, Sidekick) | 40 | 7 | 07, 40 |
| Dew, Eddie | 5 | 14 | 05, 14 |
| Diablo (Horse) | - | - | 36 |
| Diaz, Porfirio (Mexican Dictator) | - | - | 04 |
| Dice (Horse) | | | 48 |
| Dick (see: Wyatt, Nathaniel Ellsworth "Zip") | | | 0 |
| Dick Stanley's Congress of Rough Riders (c. 1909) | | | 01 |
| Dickson, Artells "Art" | - | - | 39 |
| Diggs, Leroy (Texas Ranger) | | | 49 |
| Dillingham, Donald H. | - | 26 | 26 |
| Dime Novels | - | - | 23, 29, 33 |
| Dinah (Mule) | - | - | 42 |
| Dinwiddle, William (Knoxville Policeman, Victim) | - | 50 | 50 |
| Dixon, Billy (LCW) | | | 27 |
| Dixon, Lee | - | - | 48 |
| Dixon, Willliam "Billy (Buffalo Hunter) Medal of Honor 1874 TYH! | - | - | 26, 27, 37, 39 |
| Dobie, J. Frank (Teacher, Folklorist, Columnist, Author) | 39 | 38 | 38, 39 |
| Doc (FC, Radio) Gunsmoke | | | 17 |
| Doc Adams (FC, TV) | - | - | 37 |
| Doc Holliday (Book) 1955 | | | 44 |
| Doc Holliday (see: Holliday, John Henry) | - | - | 0 |
| Dodd, Col. George A. (U.S. Army) | | | 13 |
| Dodd, Jimmie (Movie Actor) | - | 45 | 21, 45 |
| Dodge City (M) 1939 | - | - | 23 |
| Dodge City (Movie) 1939 | | | 41 |
| Dodge City Democrat (Newspaper) | - | - | 33 |
| Dodge City Saloon War | - | - | 0 |
| Dodge City, KS (RR | | | 06, 07, 09, 14, 16, 17, 18, 22, 26, 27, 33, 39, 40, 51 |
| Dodge, Fred J. (T, Wells Fargo Secret Agent) | - | - | 13, 16, 28, 29, 32, 36, 43 |
| Dodge, William "One Eared" (Horse Thief) | | | 11 |
| Dog Soldier Moon (Novel - 2011) | | | 34 |
| Dog Soldiers (Cheyenne) c.1860's | | | 0 |
| Dohäsan (Kiowa Chief) | - | - | 48 |
| Dolan-Riley Cattle Ranch (LCW) | | | 20 |
| Dollars Trilogy, The (Movies) | - | - | 18 |
| Dominguez, Demetria (Stage Robber) | | | 06 |
| Don't Fence Me In (M) 1945 | - | - | 27 |
| Donahue, Cornelius "Lame Johnny" (lynched from the Deadwood Stage) | - | - | 0 |
| Donnelly, Harry | - | - | 39 |
| Donner Party (some Survivors, some Cannibals) | - | - | 03, 19, 29, 35, 39, 43 |
| Donner Pass | - | - | 03 |
| Donner-Reed Party (see: Donner Party, The) [Wagon Train] | | | 0 |
| Donner, George | - | - | 29 |
| Doole, Dave | - | - | 39 |
| Doolin Gang (The Oklahombres) [Outlaws] | - | - | 14, 20, 23, 35, 45 |
| Doolin, William "Bill" (Outlaw Leader) | - | 34 | 14, 19, 20, 23, 27, 34 |
| Doomswoman (Novel) 1892 | | | 24 |
| Douglas, Kirk (Movie Star) | | | 34, 50 |
| Douglas, Stephen A. (U.S. Senator) | - | - | 36 |
| Doves of the Roost (Prostitutes) | | | 51 |
| Dowdle, William | - | - | 22 |
| Dowd, Dan (Outlaw) | | | 13 |
| Down Dakota Way (Movie) 1949 | | | 20 |
| Dow, Les | - | - | 0 |
| Dr. Baxter | | | 39 |
| Drag Harlan (1920) Silent Film | | | 23 |
| Drake, Col. Edwin (Oil Man) | - | - | 35 |
| Dred Scott Decision (Slavery Law) | - | - | 10 |
| Drexel Mission Fight, The (South Dakota) | | | 52 |
| Driftin' River (M) 1946 | - | - | 27 |
| Driscoll, Tobe | - | - | 38 |
| Dry Lake, Battle of (Modoc War) | - | - | 19 |
| Duffy, William (Deputy Sheriff) | | | 40 |
| Dugan, William (Outlaw) | | | 05 |
| Duggan, Martin J. "Mart" (Lawman | - | 15 | 10, 15, 17, 47 |
| Duggan, Sanford | - | 48 | 48 |
| Dull Knife | - | - | 47, 0 |
| Dumas Brothel (Butte, MT) | - | - | 0 |
| Dumont, Elenor "Madame Moustache" (Gambler) | - | - | 0 |
| Duncan, George Taplan "Tap" (Outlaw) | 5 | 46 | 05, 46 |
| Duncan, Renault Renaldo (Movie and TV Star) | - | 17 | 17, 21, 36, 37 |
| Dundy, Elmer S. (NE Judge) | | | 18, 19 |
| Dunlap, Three Fingered Jack (HFG) | - | 7 | 07, 32 |
| Dunn | | | 34 |
| Dunn, John (Sheriff) | | | 38 |
| Dunovan, William | - | - | 52 |
| Durango Kid (FC, Movies and TV) | | | 12, 40 |
| Durango Kid (Movie Series) | | | 13, 50 |
| Durango Kid: Roaring Rangers (M) 1946 | | | 07 |
| Durango Kid, The | | | 0 |
| Duwamish Indians | | | 23 |
| Dye, D.C. (Lawman) | | | 41 |
| Dylan, Bob (Musician, Movie Actor) | - | - | 0 |
| Dynamite (Explosive) | - | - | 16 |
