 | Harriet Williams Russell Strong Harriet Williams Russell Strong was an American social activist, inventor, Conservationist, and... more » |
 | Harvey Locke is a conservationist, writer, and photographer. He is a recognized global leader in... more » |
 | Hector Wilks was an English botanist and conservationist. He is perhaps best known for... more » |
| Helen Elaine Freeman was an American conservationist and endangered species advocate, who... more » |
| Henri Blaffart was a Belgian conservationist and environmentalist. Blaffart graduated from the... more » |
 | Henry Fairfield Osborn, Sr. ForMemRS was an American geologist, paleontologist, and eugenist,... more » |
| Henry Fairfield Osborn, Jr., son of the American geologist Henry Fairfield Osborn and cousin of... more » |
 | Hugh Hellmut Iltis is Professor Emeritus of Botany at the University of Wisconsin–Madison and is... more » |
