That's what I'd have guessed too, @carbon_rod, but it's surprisingly more complicated than that. Adolf, with that spelling, was actually never very popular in the US. It floated on and off of the charts, usually in the 800s or 900s when it was on, until 1928, after which it drops off altogether.
Adolph, with that spelling, was more popular. It was on the charts in the 100s and 200s through the 1910s, and then started slowly but consistently declining in the 1920s. It experienced a couple of sharper declines during WWII (at least it looks like it - I haven't run any stats, just looked at the numbers), and then went more-or-less back to it's usual pattern of steadily increasing decline until 1970, after which it disappears. |
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