Dr. Sullivan and Dr. Patrick have completed the first compendium of African Americans depicted on U.S. Postage stamp from 1940 to 2015. ( Dr. Sullivan started collecting stamps as a child, which encouraged him to become an educator. He was inspired by the work of Booker T, Washington, George Washington Carver, and W. E . B. Du Bois.) The extraordinary and innumerable achievements of African Americans have shaped the story of America by the roles they...