Henry Noel Brailsford was a British journalist and writer, considered one of the most prolific left-wing journalists of the first half of the 20th century. A founding member of the Men's League for Women's Suffrage in 1907, he resigned from his job at The Daily News in 1909 when it supported the force-feeding of suffragettes on hunger strike.

Howard Phillips Lovecraft was an American writer of weird, science, fantasy, and horror fiction. He is best known for his creation of the Cthulhu Mythos.

Sir Henry Rider Haggard was an English writer of adventure fiction romances set in exotic locations, predominantly Africa, and a pioneer of the lost world literary genre. He was also involved in land reform throughout the British Empire. His stories, situated at the lighter end of Victorian literature, continue to be popular and influential.

Hilda Doolittle was an American modernist poet, novelist, and memoirist who wrote under the name H.D. throughout her life. Her career began in 1911 after she moved to London and co-founded the avant-garde Imagist group of poets with American expatriate poet and critic Ezra Pound. During this early period, her minimalist free verse poems depicting Classical motifs drew international attention. Eventually distancing herself from the Imagist movement, she experimented with a wider variety of forms, including fiction, memoir, and verse drama. Profoundly affected by her experiences in London during the Blitz, H.D.'s poetic style from World War II until her death pivoted towards complex long poems on esoteric and pacifist themes.

Harry Clement Stubbs, better known by the pen name Hal Clement, was an American science fiction writer and a leader of the hard science fiction subgenre. He also painted astronomically oriented artworks under the name George Richard.

Hal G. Evarts was an American short story writer and novelist. Born in Kansas, he served in World War I, and he became a writer in Los Angeles, California.

William Hale White, known by his pseudonym Mark Rutherford, was a British writer and civil servant. His obituary in The Times stated that the "employment of a pseudonym, and sometimes of two, was sufficient to prove a retiring disposition, and Mr. Hale White was little before the world in person."

Hallie Erminie Rives was a best-selling popular novelist and wife of the American diplomat Post Wheeler.

Hamilton Holt was an American educator, editor, author and politician.

Hamilton Wright Mabie, A.M., L.H.D., LL.D. was an American essayist, editor, critic, and lecturer.