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American author, naturalist, ornithologist

Scientific author

American author, naturalist, ornithologist

American biologist

Australian plant collector and botanical illustrator

American teacher and textbook writer

Psychologist and logician

American teacher and abolitionist

American correspondent, educator, landscape designer, botanist

British activist

American writer, botanist, and teacher

Irish writer

Ornithologist and abolitionist

American mycologist

Garden designer, artist, editor

American atmospheric scientist and civil rights advocate

Belgian botanist

American amateur scientist and advocate of women's rights

Canadian botanist (1833-1871)

Botanist

English science fiction writer

British mycologist, writer, and illustrator

Scottish fossil collector

American teacher and botanist (1840-1911)

English biologist and botanical artist

American naturalist and author

American botanist

Argentinian scientist

Austrian botanist

American pioneer, suffragist, botanist and botanical collector

English-Canadian botanist, naturalist, and author

British writer on art, and algologist

American botanist and plant collector

American mycologist

19th century author of star charts

Naturalist, women's rights activist

Astronomer

British suffragist, editor

American botanist and plant collector