American frontiersman who was the renowned guide of John C. Frémont's western expeditions in the 1840s, an agent for the Ute (1853-1861), and a Union commander in the Civil War. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
American environmentalist and writer whose best-known work, Silent Spring (1962), condemns the use of pesticides hazardous to wildlife. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
American comedian and mainstay of late-night television as the host of The Tonight Show (1962-1992). |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.