Henry DeWolf "Harry" Smyth was an American physicist, diplomat, and bureaucrat. He played a number of key roles in the early development of nuclear energy, as a participant in the Manhattan Project, a member of the U.S. Atomic Energy Commission (AEC), and U.S. ambassador to the International Atomic Energy Agency (IAEA).
Henry Ernest Dudeney was an English author and mathematician who specialised in logic puzzles and mathematical games. He is known as one of the country's foremost creators of mathematical puzzles.
Henry Edward Allison was a scholar of Immanuel Kant, widely considered to be one of the most eminent English-language Kant scholars of the postwar era. He was a professor and chair of the Philosophy Department at the University of California, San Diego and a visiting professor at Boston University.
Henry Edward Krehbiel was an American music critic and musicologist who was the chief music critic of The New York Tribune for more than forty years. Along with his contemporaries Richard Aldrich, Henry Theophilus Finck, W.J. Henderson and James Huneker, Krehbiel is considered part of the 'Old Guard', a group of leading New York-based music critics who first established a uniquely American school of criticism. A critic with a strong bend towards empiricism, he frequently sought out first hand experiences, accounts and primary sources when writing; drawing his own conclusions rather than looking to what other writers had already written. A meliorist, Krehbiel believed that the role of criticism was largely to support music that uplifted the human spirit and intellect, and that criticism should serve not only as a means of taste making but also as a mode to educate the public. His book How to Listen to Music was widely used as an instructional guide by the music consuming public in the United States during the last years of the 19th century and first several decades of the 20th century.
Henry Edwards, known as "Harry", was an English stage actor, writer and entomologist who gained fame in Australia, San Francisco and New York City for his theatre work.
