* William J. Long: A Canadian naturalist and writer known for his books on animal behavior, particularly wolves. His most famous works include "Wild Animals I Have Known" and "The Wilderness of the Upper Yukon."
* William Long (1863-1951): A British writer known for his historical novels, notably "The Secret History of the Court of Charles II" and "The Three Centuries."
* William Long (1887-1948): An American author known for his fiction and short stories. His works often dealt with the American West.
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