Harold L. Oppenheimer (1919-1985) was a cattle rancher and chairman of Oppenheimer Industries, Inc., a cattle and land management and investment company (agricultural services) in Kansas City, Missouri. He was a retired brigadier general in the U.S. Marine Corps Reserves, having served in World War II, Korea, and Vietnam. He compiled his combat experiences in his book, "March to the Sound of the Drums" (1967). He was an authority on cattle investments and author of five books on agriculture including "Cowboy Economics" (1976) and "Land Speculation: An Analysis and Evaluation" (1972).
From the description of Harold L. Oppenheimer papers, 1931-1976. (University of Wyoming, American Heritage Center). WorldCat record id: 83296169
