July 31 in San Antonio history…
A survey of Medina Lake to find a remedy for leakage under the diversion dam will be made by Shirley Baker of San Francisco, engineer with the bureau of fisheries.
San Antonian David Scott and fellow astronaut James Irwin, become the first people to drive a car somewhere other than earth as they take NASA’s lunar rover for a spin on the surface of the moon.
The first of three Brackenridge trains, replicas of the 1863 C.P. Hunnington locomotives, make their maiden run in Brackenridge park. They replace the previous Mopac locomotives. The engines are named Fiesta Flyer, Bluebonnet and Yellow Rose.