OK , OMC pond backs up to neighborhood. I will go back to my earlier response. Pond was stocked by fisherman of Caddo Lake. Someone in the neighbor hood went fishing and got in late (maybe after dark) did not want to clean the fish they caught and they did not want to waste their fish so your pond was the place that came to mind to discard their fish.
If someone did bucket stock my pond, it was not someone from that neighborhood. My PROPERTY backs up to the neighborhood, but not my pond. This neighborhood is somewhat exclusive and the fence that separates it from my property is 10' with barbed wire on the top. From that neighborhood, a person would have to climb that fence, with fish, go through 500+ feet of thick woods, then 200 feet of open field, then walk right by the side of my house where my three large dogs spend most of their time, in order to get to my pond.
If it was bucket stocked, it was done from the road that passes by the front of my house.