Saving wheat, corn, rye, and barley
In May 1917 the Rotary Club of Pittsburgh, Pennsylvania, wrote to Congressman John M. Morin urging prohibition to conserve agricultural products. During World War I, the Federal Government urged Americans to conserve vital materials for the war effort. Supporters of prohibition seized on the war as a reason to ban the manufacture and sale of alcohol.
National Archives, Records of the U.S. House of Representatives Used with the permission of the U.S. House of Representatives