Go to the Government Library and email them and tell them what towns you need Sanborns for.They'll email them to you.Just search Oklahoma Sanborn maps and you should find the web site.
I have stacks of cds with sanborn maps of Oklahoma. Not sure if I got Ardmore but I will check and let ya know. Oklahoma maps are hard to get your hands on. I just happen to have a friend that his daughter was going to OSU and she used her library pass to get a large amount of maps for me. I tried the government library and they gave me the run around and then wanted to charge me.
If you do that would be great and if there is anything in Texas you need let me know and ill try and get it for you. Are you in Ok? i drove all the way to Enid today because i was told of a dump that was supposed to be huge that went from 1800-1950. Needless to say i was very disappointed the best stuff i found was in a sandbar in the middle of creek. it was all broken and shards wish i could have located where that glass was coming from but i was short on time. and not able to find it.