Jacob Green

American biologist

American photographer, naturalist and investment analyst

Naturalist, author, photographer and poet

American naturalist

Mexican ichthyologist

American naturalist

American artist, taxidermist, naturalist, museum curator

American marine biologist

U.S. general officer, ichthyologist, and naturalist

American scientists specializing in diatoms

American naturalist

American physician, philanthropist and naturalist

American naturalist, ornithologist, ichthyologist, museum curator, and the 2nd Secretary of the Smithsonian

American politician, 26th President of the United States

American poet, essayist, naturalist, and abolitionist

American ornithologist, naturalist, and painter

Commissioner-general Adelsverein, co-founder Bettina, Texas

American writer, critic, and naturalist

American zoologist

American naturalist