People in Category: 20th-century American non-fiction writers

American agricultural economist

American journalist and author

Architectural historian

American pastor

American schoolteacher, editor, author, and lecturer

American author; Red Cross worker in France

American geographer, academic, author

American writer

American teacher and author

American writer

American sportsperson and writer

American genealogist, author

Haitian-American medical anthropologist, nurse, and medical missionary

Conservator

American writer and journalist

American missionary, temperance worker, author

Writer

American teacher, writer (1856-1938

American magazine editor, and writer

American author, teacher

American author and journalist

American writer

American author, editor

American astrologers

American author and craftswoman

American art critic

American temperance leader, lobbyist

American gambler, pit boss, and author

American author, teacher, lecturer

American social reformer, temperance activist

American judge

American academic

American academic administrator

American university professor, author, speaker, poet and social worker

American legal scholar

American geologist, author

American author; settlement worker