Many believe he was fictional, but one family of "patriots" knows better. Trey Hauptmann, right, a descendant of Uncle Sam, carries on his ancestor's legacy of service. Right, a World War I ...

There is a famous poster, dating back to World War I, that shows Uncle Sam pointing at the viewer over the words, "I want you for U.S. Army." Of course, at the time, the message was directed to young ...