New York Safety Steam Engine Co. was founded in 1869 by George H. Babcock and Stephen Wilcox. They left the company in 1878 and founded Babcock & Wilcox Co. By 1890, the steam engines were being made by Nichols & Langworthy Machine Co. and sold through New York Safety Steam Engine Co.
Information Sources
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American Steam Engine Builders: 1800-1900 by Kenneth L. Cope, 2006 page 165