Knocking in Cooke County, Texas

I was 14 years old in 1976. It was either Nov or Dec 1976 and I had rode my dirt bike to what is known in Cooke County, Texas as the Old Toll Bridge located at the Red River. At the river stands 3 old piers that supported the bridge back in the 20's or 30's. I was standing by the edge of the river looking at the ice float by when I heard what sounded like to me as Coon dogs hot on the trail of something across the river on the Oklahoma side. As I looked across I saw a dark hairy animal, or something, running on two legs like a human. There was a dead tree log that this large animal jumped over. The coon dogs jumped across the log after it. As I watched in amazement I heard the lead dog let out a loud yelp. The 2nd dog came running back and jumped over the log back into the direction that they originally came from. The first dog never came back nor made another sound. At 14 years old it scared the hell out of me so I ran and jumped on my motorcycle and took off home. I told everyone at the house of what I saw and everyone laughed at me. I hade been back there several times after that but never seen or heard anything. The Old Toll Bridge Road is now closed off. I know what I saw and it wasn't human nor a bear. It was a Big Foot. Next was in the late summer of 1978 and my friend and I had just returned from cruising the drag in town. We had went back to his parents house out by the Girls State School in Gainesville, TX. When we go there his parents, brothers and sister where all in the back yard not talking. We asked them what was going on and his Dad said just to listen. We said what for. He said that they had heard some kind of wild animal growl coming from creek bottom out in Mr. Leowold's pasture. We set there for a while and they went in. I was talking to my friend when we heard a load roaring growl. Like a four wheel drive truck locking up the tires on the highway. Just then it did it again. We ran inside and told his parents. They said just to leave it alone. We went and snuck out our 22 rifles and jumped in the truck to drive down to where the creek went under the bridge just east of state school. As we were listening we heard bird chirping then flying off out of their roost. Then limbs breaking and rocks being knocked around on the creek bed. We decided to get out of there and left ASAP. The next day we went back over to where we had access to get to the creek by the highway. David and myself walked the creek when we came across a barefoot foot print that was much larger than any grown man. We left and never made it back there again.