Grampa Fred (Finders Keepers)

He counted. Four hundred dollars. Four hundred in this one envelope, and there were dozens of them. He stuffed the bills back into the envelope—not an easy job, because now his hands were shaking worse than Grampa Fred’s in the last year or two of his life.

Pete Saubers remembers Grampa Fred’s shaking hands late in his life. Dark Tower VII uses Grampa Fred inside a stock joke about a fatal car crash, not an established relative.