Hiding your immorality

Ok, I’ve been thinking about this for a while. So if you were a vampire since, say the 19th century… how do you hide the fact that you’re immortal? Sure you can say, “Oh that was my great great grandfather.” “I’m ‘So and So, The 5th.”

But what about IDs, like Social Security, driver’s license. People who recognize you from like 50 years ago

Somebody break down the reality of it for me please