| Astorian Expedition informative sign | |
| Atlantic City, Wyo. | Lori Van Pelt |
| Atlantic City, Wyo. | |
| Atlas Theatre | |
| Automobile, Wyoming’s first | Phil Roberts |
| Averell, Jim, newspaper reporting of the lynching of | Tom Rea |
| Ayres Natural Bridge | |
| Ayres Natural Bridge, Oregon Trail site | WyoHistory.org |
| Babcock, Charlotte, Casper author | Nichole Simoneaux |
| Baker, Jim. Frontier Scout | Lori Van Pelt |
| Baker, Pvt. Ralston, pioneer grave of | Randy Brown |
| Balangiga, bells of | Douglas R. Cubbison |
| Banditti of the Plains, The | Rebecca Hein |
| Bank Robbery, Green River | Brigida R. (Brie) Blasi |
| Banking, Wyoming history of | Tom Rea |
| Barber, Amos | Wyoming State Archives |
| Bardo, Helen, disability activist | Phil Roberts |
| Barlow, Bill | Rebecca Hein |
| Barrett, Frank | Wyoming State Archives |
| Barrow, Merris, editor of Bill Barlow’s Budget | Rebecca Hein |
| Battle Mountain, in Sublette County near Bondurant, Wyo. | |
| Battle of Red Buttes marker | |
| Battle Pass Scenic Byway | |
| Baxter, George | Wyoming State Archives |
| Beethoven celebrations, Wyoming orchestras and | Rebecca Hein |
| Belden, Charles, photographer | Lori Van Pelt |
| Bell, Tom, High Country News editor and publisher | Marjane Ambler |
| Bellamy, Mary Godat | Wyoming Legislative Service Office |
| Bells of Balangiga | Douglas R. Cubbison |
| Bessemer, Wyoming | Annette Hein |
| Bessemer, Wyoming | |
| Bicycling in Early Wyoming | Lori Van Pelt |
| Bierstadt, Albert: Landscapes of the American West | Maria Wimmer |
| Big Boy Steam Engine | |
| Big Horn Academy/Cowley Log Gym | |
| Big Horn and Flying H polo clubs | |
