Edward Alan Sullivan was a Canadian poet and author of short stories. He is noted for his 1935 historical adventure novel The Great Divide, which depicts the construction of the Canadian Pacific Railway.

Albert Bushnell Hart was an American historian, writer, and editor based at Harvard University. One of the first generation of professionally trained historians in the United States, a prolific author and editor of historical works, Albert Bushnell Hart became, as Samuel Eliot Morison described him, "The Grand Old Man" of American history, looking the part with his "patriarchal full beard and flowing moustaches."

Albert Delpit was a French novelist and playwright.

Albert Einstein was a German-born theoretical physicist, widely ranked among the greatest and most influential scientists of all time. Best known for developing the theory of relativity, he also made important contributions to quantum mechanics, and was thus a central figure in the revolutionary reshaping of the scientific understanding of nature that modern physics accomplished in the first decades of the twentieth century. His mass–energy equivalence formula E = mc2, which arises from relativity theory, has been called "the world's most famous equation". His work is also known for its influence on the philosophy of science. He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", a pivotal step in the development of quantum theory. His intellectual achievements and originality resulted in "Einstein" becoming synonymous with "genius". Einsteinium, one of the synthetic elements in the periodic table, was named in his honor.

Albert Frederick Calvert (1872-1946) was an English author, engineer and explorer active in Australia.

Albert Jeremiah Beveridge was an American historian and United States Senator from Indiana. He was an intellectual leader of the Progressive Era and a biographer of Chief Justice John Marshall and President Abraham Lincoln.

Albert Jay Nock was an American libertarian author, editor first of The Freeman and then The Nation, educational theorist, Georgist, and social critic of the early and middle 20th century. He was an outspoken opponent of the New Deal, and served as a fundamental inspiration for the modern libertarian and conservative movements, cited as an influence by William F. Buckley Jr. He was one of the first Americans to self-identify as "libertarian". His best-known books are Memoirs of a Superfluous Man and Our Enemy, the State.

Albert Gallatin Mackey was an American medical doctor and author. He is best known for his books and articles about freemasonry, particularly the Masonic Landmarks.

Albert Bigelow Paine was an American author and biographer best known for his work with Mark Twain. Paine was a member of the Pulitzer Prize Committee and wrote in several genres, including fiction, humor, and verse.

Albert Payson Terhune was an American writer, dog breeder, and journalist. He was popular for his novels relating the adventures of his beloved collies and as a breeder of collies at his Sunnybank Kennels, the lines of which still exist in today's Rough Collies.