I guess the point of the OP's question was how to improve his reception beyond the one station he is currently able to pull in.
Perhaps I assumed. incorrectly, that he wanted to do that with his current rig.
Could be wrong about the OP's intentions, (he has yet to respond with a post to this thread).
And who knows? Maybe his tank tap peaks out (not enough turns) at the low end of the broadcast band .
And let's not forget that he's in the hills of West Virginia. No amount of more sophisticated tuning is going to replace the need for a better antenna system, however simple that solution may be.
But as a fan of QRP rigs, it is great fun (and a marvelous learning experience) to see just how little, equipment and sophistication wise, you can get away with and still pick up (and transmit) meaningful AM signals out of the ether.
Judging from his dad's antenna equipment arrays, the OP has an in-house knowledge source. But, not unlike my father, maybe he's being encouraged to figure out his problem on his own. With the gear he has.
Just a thought.