Jimmy said there was no way herman E calloway could be bud.s daddy

True, Jimmy did say that there was no way Calloway could be Bud's father.

Jimmy said, "Hold on, Herman." He seemed a lot nicer than this Calloway guy. "Bud, you got to understand Mr. Calloway here can't be your daddy, no how, no way, nuh-uh. I don't know what gave you that idea, but whatever, we've got to get you back home. Someone in Flint's got to be worried sick about you."