Simon Ingersoll (March 3, 1818 – July 24, 1894) founded the Ingersoll Rock Drill Company in 1871.
In 1905 Ingersoll-Sargeant Drill Company merged with the Rand Drill Company to form Ingersoll-Rand. Unfortunately, Simon Ingersoll never found a way to make a fortune from his rock drill and died nearly penniless.