Hélène Adeline Guerber (1859–1929), also known as H.A. Guerber, was an American writer of books, most of which were lively retellings of myths, legends, folklore, plays, epic poetry, operas and history. She was also a teacher.

Sir Hamilton Alexander Rosskeen Gibb, known as H. A. R. Gibb, was a Scottish historian and Orientalist.

Henry Brereton Marriott Watson, known by his pen name H. B. Marriott Watson, was an Australian-born British novelist, journalist, playwright, and short-story writer. He worked for the St. James Gazette, was assistant editor of the Black and White and Pall Mall Gazette, and staff member on W. E. Henley's National Observer.

Henry Beam Piper was an American science fiction writer. He wrote many short stories and several novels. He is best known for his extensive Terro-Human Future History series of stories and a shorter series of "Paratime" alternate history tales.

Henry Christopher Bailey was an English author of detective fiction.

Herbert George Wells was an English writer. Prolific in many genres, he wrote more than fifty novels and dozens of short stories. His non-fiction output included works of social commentary, politics, history, popular science, satire, biography, and autobiography. Wells' science fiction novels are so well regarded that he has been called the "father of science fiction".

Harrie Irving Hancock was an American chemist and writer, mainly remembered as an author of children's literature and juveniles in the late 19th and early 20th centuries, and as having written a fictional depiction of a German invasion of the United States.

Henry Louis Mencken was an American journalist, essayist, satirist, cultural critic, and scholar of American English. He commented widely on the social scene, literature, music, prominent politicians, and contemporary movements. His satirical reporting on the Scopes Trial, which he dubbed the "Monkey Trial", also gained him attention. The term "Menckenian" has entered multiple dictionaries to describe anything of or pertaining to Mencken, including his combative rhetorical and prose style.

Henry Major Tomlinson was a British writer and journalist. He was known for anti-war and travel writing, novels and short stories, especially of life at sea. He was born and died in London.

H. Morse Stephens was an American historian and professor of history at the University of California, Berkeley who helped to purchase the Bancroft Library, and who worked to build archives of California history, the 1906 San Francisco earthquake, and World War I.