The text below is a useful example of propaganda.
"To the great and lasting benefit of the national parks and their owners, the American people, 47-year-old Robert Sterling Yard. newspaperman and publisher, was ready when the call came to publicize those national parks. A friend of Stephen Mather since the 1890s and Mather's best man at his wedding, he, like Mather, had long enjoyed the outdoors prior to the start of his public service career. Upon arriving in Washington in early 1915. Bob Yard quickly absorbed the intense dedication which was creating a bureau to protect America's national parks. At the National Park Conference in March of 1915, Yard affirmed his bond to the cause of the parks, saying, "I, the treader of dusty city streets, boldly claim common kinship with you of the plains, the mountains, and the glaciers."
His work proved the depth of his conviction. In 1915 he assembled The National Parks Portfolio for distribution to 270,000 opinionmakers throughout the country, helped generate numerous articles on national parks in publications around the nation, and wrote pamphlets and articles to focus public attention on the parks. His intense efforts with the publishing world he knew so well resulted in more than one thousand articles on national park subjects between 1917 and 1919. Forced to leave the government in 1919, owing to a law prohibiting supplementing pay of federal employees, Yard, whose meager salary had been augmented by Stephen Mather since 1915, received Director Mather's final financial support in creating the National Parks Association.
On a cold January day in 1930, Robert Sterling Yard had stood with National Park Service Director Horace Albright at the grave of the recently deceased Stephen Mather. Albright remembered: "We rededicated ourselves to the ideals of our friend as long as we might be spared."
Bob Yard applied that dedication to the end of his highly productive life."
Mather needed someone to point to and he needed printed material to pass out to Congress. But the popular support, Mather knew, would come from Pillsbury's films, which allowed Msther to associate himself with values he in no wise shared.