 In 1907, R.L.Polk & Co. was publishing a "Gazetteer" Business directory for the states of Michigan (plus Windsor and Walkerville Ontario), Alaska, Arkansas, California, Idaho, Illinois, Oklahoma, Indiana, Iowa, Kansas, Kentucky, Maryland, Minnesota, North Dakota, South Dakota, Montana, Missouri, Nevada, Oregon, Washington State, Pennsylvania, Tennessee, Texas, Utah, West Virginia, and Wisconsin.In 1921, a conversation between Ralph Lane Polk II and Alfred P. Sloan (who later became president of General Motors) helped fuel R. L. Polk & Company's entry into the automotive industry.