- Map inset includes connected bird's-eye view sketch of Houston, Central Park, Magnolia Park, and Ship Channel industries. Printed on map: "State of Texas, County of Harris: I, Sam'l E. Packard, a Civil Engineer of the City of Houston, County of Harris, and State of Texas, do herby certify that the above Map of the Magnolia Park and Central Park Subdivisions of the City of Houston, is a true and correct map of said subdivisions as shown by the Official Maps of these subdivisions of record in the office of the County Clerk of Harris County, Texas. Witness my hand this 19th Day of October, A.D. 1918. [sign. Sam'l E. Packard], Civil Engineer."