Business: Cusack

In 1875, one Thomas Cusack, a youth in his teens, started a business with only a paint pot and brush and a remarkable personality as assets. The business consisted in painting advertising signs on the sides of buildings in a small way. Gradually, he took to building billboards of his own, and leasing suitable walls and other locations for outdoor advertisements.

After a half-century, Mr. Cusack decided to retire from active work. But it took a banking syndicate to buy out his interest in the Thomas Cusick Co. of Chicago. What his selling...