Robert (Granddaddy) Corson was Henry R. Corson's father. Granddaddy Corson lived on the west side of the 4th Line (Lot 2 or 3). He was an early saddlebag preacher in the Township. His son, Henry R. Corson was editor and publisher of the Markham Economist newspaper. He had inherited the paper from his brother-in-law, David Reesor. Robert Corson succeeded his father Henry Corson as editor and publisher of the newspaper in 1909. In 1915 Robert Corson bought out the Markham Sun, a ‘Tory’ paper and continued to publish the Markham Economist and Sun until his death in 1930.