This system will be undergoing maintenance April 18th between 9:00AM and 12:00PM CDT.

Heaton, Dave. [Photograph 2012.201.B0500.0018], photograph, November 8, 1968; (https://gateway.okhistory.org/ark:/67531/metadc357344/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Gateway to Oklahoma History, gateway.okhistory.org; .