This is not bird related, but it is interesting. Someone send me this link.
http://www.vintagereprints.net/names/
When you enter a first name, the results show you the popularity of that name for each of the last 100+ years.
Try it. Enter your first name and see if you were part of brief period when your name was part of national fad.
birdsoup 
Turned out I got my name at the height of its popularity in NY … uncanny! Thanks Hank.