McGraw Hill is not an actual person, but a company name created by joining together the last names of the company's two founders. McGraw-Hill Education was founded by James H. McGraw and John A. Hill in 1917, as "The McGraw-Hill Publishing Company."
In 1888, McGraw purchased "American Journal of Railway Appliances," then established "The McGraw Publishing Company" in 1899. In 1902, Hill formed "The Hill Publishing Company." Hill and McGraw merged the book departments of their company into "The McGraw-Hill Book Company" in 1909, then combined the remaining components of their business into "The McGraw-Hill Publishing Company." In 1986, McGraw-Hill bought out The Economy Company and, as of 2015, is the largest educational publisher in the United States.