For some reason I got to wondering when and where the phrase “teeming millions” originated.
Playing with Google Books I found these:
There are earlier dates but they all seem to be bad OCR or other false hits. There is a hit in “A sermon delivered in Boston, Sept. 16, 1813 By Timothy Dwight, American Board of Commissioners for Foreign Missions” but it wasn’t printed until 1828 and the phrase appears in somebody else’s sermon.
Niles’ Weekly Register was the recordings of Congress, previous to the Congressional Register. So that’s two hits from legislators. That’s a source much more likely to be preserved and reprinted. Makes me wonder whether there wasn’t a contemporary source that they all were drawing on.