Bonanza (1829)

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TRAVELS IN THE INTERIOR OF MEXICO
IN 1825, 1826, 1827 & 1828
by Lieut. R. W. H. Harvey
Henry Colburn and Richard Bentley, London
1829

Pg. 78:  ...the mine, _it is said_, will be shortly in "bonanza" (pay a large profit)!
("Bonanza" is also used on page 145...OED, M-W have 1840s--ed.)

Pg. 460:  The neighboring mountains abound with Mexcal, which makes a very strong liquor; and although Don Manuel has only two small and very imperfect stills, they brings him in a profit of thirty dollars a day throughout the year.
   It may perhaps be well to describe the manner in which liquor is made from the Mexcal, which is a species of socotrine aloe. (...)