From the description in the articles, I would assume
Cootie Brown is most likely a 3 toed box turtle as pictured
above [photo is not Cootie].  Since these turtles are native
to Navarro county, and can live over 100 years it is possible that Cootie
could still be out there somewhere !

The Corsicana Daily Sun  -  Mon, Sep. 2, 1952
Submitted by Diane Richards

The Corsicana Daily Sun  -  Fri., Sep. 26, 1952
Submitted by Diane Richards

The Corsicana Daily Sun  -  Sat., Apr. 11, 1953
Submitted by Diane Richards

Note:  April would be about when turtles come out
of brumation which is the reptile version of hibernation