From: Austin. An Illustrated History. (David C. Humphrey, 1985) Below, from Austin City Council minutes, September 25, 1924:
The dealership survived until at least the 1950's:
American Motorcyclist, June 1955
Douglass, Neal. Austin Motorcycle Company with Police Men, Photograph, April 30, 1953; (http://texashistory.unt.edu/ark:/67531/metapth19066/ : accessed December 09, 2014), University of North Texas Libraries, The Portal to Texas History, http://texashistory.unt.edu; crediting Austin History Center, Austin Public Library, Austin, Texas.