In his nearly fifty years of cartooning. Darling saw profound changes in his surroundings and he won two Pulitzer prizes for his skillful interpretations of national and international events. At the zenith of his career, in the early thirties, "Ding" was recognized as the finest editorial cartoonist in the nation. His work was syndicated, through the New York Herald Tribune, to more than 130 newspapers and millions of daily readers. Darling, however, enjoyed two successful careers. He was devoted to the intelligent stewardship of natural resources long before conservation and ecological considerations were fashionable. He helped create the Iowa Conservation Commission and to shield it from political interference. He instigated a biological survey of the state and created the benchmark Twenty-five-Year Plan in Iowa that became the conservation planning model for other states. Darling went to Washington, D.C., to head the
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