Albert Benjamin "Happy" Chandler, Sr. (July 14 1898 - June 15 1991) was twice governor of Kentucky, a U.S. Senator, the 2nd Commissioner of Major League Baseball, and a member of the Baseball Hall of Fame. His jovial attitude earned him the nickname "Happy," which stuck for the remainder of his life. Chandler's first term as governor is still regarded as one of the most productive of any Kentucky governor. Wikipedia
Bibliography American National Biography ; Scribner Encyclopedia of American Lives ; Hixson, Walter L. The 1938 Kentucky Senate Election: Alben W. Barkley, Happy Chandler, and the New Deal. bioguide.congress.gov/scripts/biodisplay.pl?index=C000290/
The definitive Wikipedia entry for Happy Chandler. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Happy_Chandler