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 Due Process Clause is essentially a guarantee of basic fairness. Fairness can, in various cases, have many components: notice, an opportunity to be heard at a meaningful time in a meaningful way, a decision supported by substantial evidence, etc.