1796  (1911)  [Mr. McGill drinks tea made of hemlock pine.]
1821  After supping on bread and hemlock tea . . . I went to bed at an early hour.
1853  I recommend, from experience, a hemlock-bed, and hemlock-tea, with a dash of whiskey in it, merely to assist the flavour, as the best preventive.
1964  . . . hemlock "tea" and burned Indian corn "coffee" were the substitutes for the real articles, which were too expensive.