Henry Crosby Emery was an American economist.

Colonel Henry Thomas Curling was a Royal Artillery officer of the British Army who served between 1868 and 1902. He fought in the Anglo-Zulu war and during the Battle of Isandlwana was one of only a few British officers to survive; in fact he was the only British front line survivor. Afterwards he wrote a dramatic report on the battle and several letters home that described it further. After the Zulu war he saw service in Afghanistan, Aldershot and Egypt. The letters he wrote during the Zulu war were posthumously published in the book The Curling letters of the Zulu War: "there was an awful slaughter" (2001) co-authored by Adrian Greaves and Brian Best.

Henry Cuyler Bunner was an American novelist, journalist and poet. He is known mainly for Tower of Babel.

Henry Joseph Darger Jr. was an American writer, novelist and artist who worked as a hospital custodian in Chicago, Illinois. He has become famous for his posthumously discovered 15,145-page fantasy novel manuscript called The Story of the Vivian Girls, in What Is Known as the Realms of the Unreal, of the Glandeco-Angelinian War Storm, Caused by the Child Slave Rebellion, along with several hundred drawings and watercolor illustrations for the story.

Henry David Inglis, pseudonym Derwent Conway (1795–1835) was a Scottish travel writer and journalist.

Henry David Thoreau was an American naturalist, essayist, poet, and philosopher. A leading transcendentalist, he is best known for his book Walden, a reflection upon simple living in natural surroundings, and his essay "Civil Disobedience", an argument for disobedience to an unjust state.

Paul Henry de Kock, better known as Henry de Kock, was a 19th-century French playwright, novelist, and chansonnier, famous for his salacious novels.

Henry de Monfreid was a French adventurer and author. Born in Leucate, Aude, France, he was the son of artist painter Georges-Daniel de Monfreid and knew Paul Gauguin as a child.

Henry Marie Joseph Frédéric Expedite Millon de Montherlant was a French essayist, novelist, and dramatist. He was elected to the Académie française in 1960.

Henry de Vere Stacpoole was an Irish author. His 1908 romance novel The Blue Lagoon has been adapted into multiple films. He published using his own name and sometimes the pseudonym Tyler de Saix.