Robert Irwin & Co.
Robert Irwin & Co. was a dry goods store that sold fabrics, household items, groceries, and other merchandise. Brothers John Irwin and Robert Irwin were partners in the store from April 1837 until March 1849, when John Irwin became the sole proprietor.
John Carroll Power, ed. History of the Early Settlers of Sangamon County, Illinois (Springfield, IL: Edwin A. Wilson, 1876), 405-406; Sangamo Journal (Springfield, IL), 1 April 1837, 3:3; 7 May 1841, 3:7; Illinois Daily Journal (Springfield), 31 March 1849, 3:1.