Unknown (photographers)19301 black-and-white portrait of Frank Witchell and 1 group photograph of "Officials, Engineers, Inspectors on the Dallas Power & Light Co. Office Building. Fabricated & Erected by Mosher Steel & Machinery Co. Dallas, July 23, 1930."utlarch:437dd568-b57d-42a2-b271-8f6f5299a77cEnglishhttp://rightsstatements.org/vocab/UND/1.0/Lang and Witchell collectionArchitecture--Southern StatesarchitectsFrank Witchell portrait and group photographblack-and-white photographsstill image