Eben Horsford

Eben Norton Horsford (27 July 1818 – 1 January 1893) was an American scientist who is best known for his reformulation of baking powder, his interest in Viking settlements in America, and the monuments he built to Leif Erikson.

Eben Horsford was born in Livingston County, New York in 1818. He studied at Rensselaer Polytechnic Institute, graduating as a civil engineer at age 19. He then worked for two years in the Geological Survey of New York, and shortly after he had reached his majority he became an instructor in mathematics and the sciences at the Albany Female Academy, where he taught for four years, after which he resumed his studies in Germany with Justus von Liebig. On returning to the United States, Horsford was appointed the Rumford Professor and Lecturer on the Application of Science to the Useful Arts at Harvard in 1847. He taught chemistry and conducted research at the Lawrence Scientific School at Harvard for 16 years, and published articles in major scientific publications on such topics as phosphates, condensed milk, fermentation, and emergency rations.

Eben Horsford probably is best remembered today for reformulating baking powder. Previously, baking powder had contained baking soda and cream of tartar. Horsford replaced the cream of tartar with the more reliable calcium biphosphate (also known as calcium acid phosphate and many other names). He did this a little earlier than August Oetker. In 1854, Horsford, with partner George Wilson, formed the Rumford Chemical Works. They named it after the title of Horsford's position at Harvard. It was in that enterprise that Horsford created his commercially successful baking powder. Horsford's development of baking powder was designated a National Historic Chemical Landmark in 2006.

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