At various times I believe "Ted Williams" branded guns were made by Marlin, High Standard, Boito, Mossberg, Savage, and H&R, depending on model, type, etc. Some of them were quite good guns. The High Standard pump shotguns were sleepers in every guise, but darned fine guns. The look-a-like semi autos were often disasters.
I am not a Ted Williams expert by any stretch.
If it is a side by side, it is likely a Boito or a Savage I would think.