Elizabeth Crowninshield's brother, George Crowninshield, had married Hasket ... They got heavily involved in the opium trade, carrying trade
George Crowninshield married Mary Derby, sister of Elias Hasket Derby, who married Elizabeth Crowninshield, George Crowninshield's sister, in 1761.
Crowninshield family from 1697-1909. The bulk of the papers are those of ... Of particular interest is information concerning opium trade in Canton, China ...
https://russianmanuscripts.library.illinois.edu/Home/Details/295