In just a few years, Harry made the leap from being a competent if frustrated prohibition agent in the Bahamas to running a Washington, D.C., department. How did he do it? It’s hard to tell, but it must have helped that he married a young woman named Martha Denniston who was from one of the richest families in America, the Mellons. The treasury secretary, Andrew Mellon, was now a close relative—and the prohibition department was part of the Treasury itself.
