Brooklyn is the most populous of New York City’s five boroughs, and the second-largest in area. Since 1896, Brooklyn has had the same boundaries as Kings County, which is now the most populous county in New York State and the second-most densely populated county in the United States, after New York County (Manhattan). It is also the westernmost county on Long Island. (Source Wikipedia)
This is where Henry David Ferrier went to live when he emigrated to the US.