You know this but others might not.
The printed index is not the original handwritten index. If one were to rate these records, you have the original bc, then the handwritten filing index which is considered a secondary source and the typed index is further down the list as a third source. IOW, the further you get from the original source lots can be added/deleted/misplaced/mispelled/or be another in a long list of hussein’s happenstance oopsy coinky dinks.
They printed out an index and made it available to the public as a result of the numerous questions iirc; whatever the reason, it’s there, and it has a source. They printed the year dates on the headers of every index as 1960 - 1964 but the index of births came without any year-dates. Tricky.
There may be more than one anomaly, but I’m simply focusing on the one. The one anomaly that is of interest is the DUPLICATE entry for OBADO which appears directly above the name OBAMA...and the only way you will be able to follow why, is to follow the thread. It’s futile that I repeat myself only to be told that OBADO DUPLICATE MAE is some sort of cancelled or mistaken entry.
It’s there to cover something we shouldn’t see.