City Limit Shape File

I am a professor at Lamar University in Beaumont. I am conducting policy research and I am looking for Houston City limit shape files for 1970, 1980, and 1990 to be used in ARCMap for spatial analysis. Does the city have this data? And if so, who do I need to contact to get the files? Thank You

Additional Info

Creator Brian Williams
Organization None
Created 7 months ago
Closed Not closed yet