sentences:  In 1828, Tracy and Williams then conveyed the property to Sidney Pitkin, who took on Elisha Edgarton Hilliard as an apprentice there.In 1832, Mr. Hilliard became one-quarter owner and by 1842 became sole-owner of the mill.In 1849, E. E. Hilliard sold one quarter of his interests to Ralph E. Spencer and the business was known as Hilliard and Spencer.