Cornelius Ryan
Irish-American journalist and author known mainly for writing popular military history
american male non-fiction writers
Carl Sagan
American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator
Ron Rosenbaum
American literary journalist, literary critic, and novelist.
Francis Parkman
American historian, best known as author of The Oregon Trail: Sketches of Prairie and Rocky-Mountain Life and his monumental seven-volume France and England in North America
S. J. Perelman
American humorist and screenwriter
Nathaniel Philbrick
American author of history, winner of the National Book Award, and finalist for the Pulitzer Prize
Robert M. Pirsig
American writer and philosopher
John Muir
Influential Scottish-American:42 naturalist, author, environmental philosopher, botanist, zoologist, glaciologist, and early advocate for the preservation of wilderness in the United States of America
Siddhartha Mukherjee
Indian-American physician, biologist, oncologist, and author
Vladimir Nabokov
Russian-American novelist, poet, translator, and entomologist