Heretofore, since at least FDR, most of our American Presidents have been typically staid, except for the notable exception of John F. Kennedy when he appeared formally and repeatedly sans hat. Henceforth the exposed male head was an overnight fad. With a bad back and Addison’s Disease, Kennedy nevertheless exuded physical vitality to us----he was young, fit, trim and daring (he would sail a boat bare-handed in the open ocean for a magazine photo-op)---furthermore, he exposed his bare head in all settings, even the most formal. Long-established haberdasheries collapsed shortly after Kennedy’s inauguration because of the ensuing world-wide trend of...