Many things can go wrong when a record collection is indexed. If you're having diffculty finding Koepka ancestors in a particular database at one site, try finding it on another and compare the results.
The Necessary and Proper Clause, also known as the Elastic Clause, the Basket Clause, the Coefficient Clause, and the Sweeping Clause, is a provision in Article One of the United States Constitution, located at section 8, clause 18.
The Necessary and Proper Clause allows Congress to decide whether, when, and how to legislate for carrying into Execution the powers of another branch; but it respects and even reinforces the principle of separation of powers.