Having grown up in Lincoln County/Chandler(Lincoln County borders Oklahoma County to the East of it) I absolutely,positively, undeniably, NEVER heard of any big foot encounters or sightings.
Trust me, I have walked almost all over Lincoln County chasing coon dogs, hunting deer, turkeys, and coyotes. I've never had an encounter with a UFO. Never seen any ghosts, taking shortcuts through graveyards to find my coondogs. Did have the hair raise a little one night when I heard two bobcats fighting. (or mating??)
Deep Fork and South of Chandler..the Sparks slew, where Deep Fork flooded into and made a nice wetland OR another way to look at it, a GREAT place to try out the 4wheelers and 4wheel drives.
Was called a few names from friends because I wouldn't "NOODLE" for catfish on Deep Fork.
Kinda afraid of losing a finger to a beaver or a snapping turtle. But never a peep on a bigfoot.
About the only excitement was a local claiming an alligator was in his pond/small lake. Several people claimed to see it. The game ranger didn't believe it until The Lincoln County Newspaper had a picture of it.
No authority, just a dumb hick now living in Houston.
Dave