That’s my issue too. When it comes to popularity, I’m less inclined to look at names that were consistently in the top 100 or 200 and more likely to look at how much the name has varied in percentage of babies who received the name. In that respect, a name like [name_f]Clementine[/name_f] (4.6x as popular at its peak vs it’s lowest point) is just as timeless as [name_f]Elizabeth[/name_f] (4.62x as popular at its peak).
Some of the mega popular names get a little tricky since there’s much more in terms of variety of names now. If we look at [name_m]Joseph[/name_m], he’s never been higher than #5 and never lower than #24 but the percent of baby Josephs was 5.7x as high at its peak vs its lowest popularity. [name_f]Elizabeth[/name_f] peaked at #3 and has gone as #26, but the percentage has been more consistent.
It’s all hard to track, but I dint even know where you’d start with nicknames since there isn’t any database of everyone’s nn.