EXAMPLES FROM THE WEB FOR GRANDFATHER CLAUSE
In 1898 Louisiana passed an amendment inventing the so-called "grandfather clause."
I've been ten years out of college, and when I go back they'll pull the grandfather clause on me and wheel me in early nights.
But the writer does not believe in the principle nor in the necessity for a "grandfather clause."
This enactment, known as the "grandfather clause," went far toward the elimination of the negro.
This restriction has been explained as coming down from "the grandfather clause" inserted in early legislation.