They were wiped out by the CCC work camps during the depressions era. These camps did most of their work on State or Federal lands to build roads in the State and National parks. I am old enough to have talked to men who worked in these camps because there were no other jobs to be had and they had to eat.
When the deer were released in Crenshaw county in the early 60s we would ride the roads on Saturday just to see if we could find tracks, this was a big deal and fun. I lived about 6-7 miles from the release area and it took about 15 years before the deer herd grew enough the see deer on our farm.

https://en.wikipedia.org/wiki/Civilian_Conservation_Corps