User saved through WordPress backend does not show up in database table users

I am posting my findings hoping that someone will find it helpful. After checking the database for the umpteenth time, I have realised, that there have been other installations in the same database. All of them not in use and long forgotten. Everything has been saved in the database in the tables with the correct prefix, there were just so many tables! It was a project for someone else and I simply did not realise in the first place that there were more installations in the same db.

The database was correct and all information found.