In 1837 Henry R. Dunham & Co. was manufacturing steam engines on North Moore Street near West Street in the southwest corner of Manhattan.
Information Sources
- 1837 New-York as it is, in 1837, page 84, "Machinists": "Dunham & Co. Henry R. steam engine and machine shop, North Moore near West."
- More history and machine information can be found at the Wikipedia web site.