The famous person Collin McKinney is associated with one of more of the Collin County historic places.
Some of the country's most noteable architects helped create the Collin County places including Texas Cotton Mill Co., Houston & Texas Central RR Co., Collin McKinney, W.S. Flynn, Southern Pacific RR, Hoke Smith and Works Progress Administration. Prominent architectural styles found in Collin Country are Italianate, Moderne and Romanesque.