Charles Sumner Woolworth (August 1, 1856 – January 7, 1947), who went by the nickname of "Sum", opened and managed the world's first five-and-dime store in Scranton, Pennsylvania, and was founder of the "C. S. Woolworth & Co" chain of 5¢ & 10¢ stores. Sum's brother, Frank Winfield Woolworth was first to venture into the retail business with his own store, and soon after, he asked Sum to join him. Frank founded "F. W.