B.T. Babbitt’s New York City soap and saleratus (baking soda) factory was near the southern tip of Manhattan, right on the Hudson River. Until the 1970s, anyway.
Benjamin T. Babbitt was a big deal in the late 1800s: he held numerous patents, his soap company was an innovator in advertising, the company had multiple factories and multiple product lines, including a 300,000 sq. ft. (27,870 sq. m) factory in Lower Manhattan.