| A | B |
| Jane Addams | 20th century reformer of Urban Housing. Founded Hull House. |
| Thomas Nast | Political cartoonist who exposed Governmental corruption. |
| Dorothea Dix | 19th century reformer of Mental health who pioneered the concept that the mentally ill were not criminals. |
| W.E.B. DuBois | 19th-20th century civil rights leader who founded the NAACP. |
| Marcus Garvey | 20th century civil rights reformer who called for the separation of races. |
| Booker T. Washington | Post Civil War civil rights reformer who began an all black college. |
| Lucretia Mott | 18th century anti-slavery and pro-women's rights reformer. |
| John Muir | 19th century naturalist who called for national parks |
| George Pendleton | Authored law requiring Civil Service Exam. |
| Gifford Pinchot | 20th century conservationist who was fired from the post of Chief of the Forest Service by Taft. |
| Jacob Riis | 20th century muckraking journalist. |
| Theodore Roosevelt | 20th century President who "busted trusts." |
| Margaret Sanger | 19th-20th century women's rights reformer who fought for birth control. |
| Elizabeth Cady Stanton | 19th century feminist who fought for prohibition and women's suffrage. |
| Harriet Tubman | 19th century escaped slave who played a leading role in the underground railroad. |
| Woodrow Wilson | President succeeding Taft who was president at the passing of the 18th amendment. |
| Carrie Chapman Catt | 19th-20th century feminist who fought for women's suffrage and played a major role in the 19th amendment. |
| William Howard Taft | 300+ pound president who initiated more antitrust suits than Roosevelt. |
| Upton Sinclair | Muckraking Journalist who penned The Jungle, which exposed unsanitary meat-packing plants. |
| Muckrakers | Journalists who uncovered corruption. |