Again, the wiktionary entry for the word I was looking up quotes the very passage in which I came across the word I’m looking up — typewriter to mean typist in Kipling’s Captains Courageous.
I haven’t uncovered yet any hard information about precisely when typist overtook typewriter to mean a person who types, however. Here is typist, typewriter on ngrams. Perhaps the drop-off in mentions of typewriter that begins in 1914 owes something to typist gaining more prominence.
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