And meant to add:
middle names aren't that important
They can be. Where I grew up and lived for as time as an adult, there was someone else with the same (not very common) first and last names as me, but a different middle name. She was born the year before me. At one time we were both attending the same out patients department for similar reasons. Later we both had accounts at the same bank. It was the different middle names that made it clear we were two different people, rather than someone making a mistake with the d.o.b.