The following is an article from 1912 that has a few historical gems (in terms of absinthe). It makes note of four absinthe distillers in the USA and shows how popular absinthe was in New York City at the time. My research suggests there were more than four absinthe producers prior to 1911 but to date, I've found only three brands names.

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PLENTY OF ABSINTHE.
But Only for New Yorkers, in Which State It Is Made.

From: New York Herald 1912