By throwing the Social Security Agency's actuarial tables against their name registration data, 538 has come up with some interesting analysis of the age distribution for names in the US.
This table of the "Deadest Names" is probably the most clickbaity--and whaddyaknow I clicked on it. It basically charts old-fashioned names that have not had their trendy revivals yet.
Contrast that to names with high bimodal distributions, like Violet, where the median age, 47, tells you almost nothing about the historical popularity, or the new hotness. I'm a little disappointed that 538 didn't mentnion The Incredibles (2004), but I guess that's for another post.
How to Tell Someone's Age When All You Know Is Her Name [fivethirtyeight.com via twitter somewhere]