Businessman. He co-Founded Pfizer Pharmaceuticals with his cousin Charles Erhart in 1849.  Family links:  Spouse:  Anna Hausch Pfizer (1840 – 1908)*  Children:  Ann Pfizer (____ – 1876)*  Gustavus Pfizer (1861 – 1944)*  Emile Pfizer (1866 – 1941)*  Alice Bachofen Pfizer Von Echt (1876 – 1959)* *Calculated relationship