Marshall Field's
Marshall Field & Company traces its antecedents to a dry goods store opened at 137 Lake Street in Chicago, Illinois in 1852 by Potter Palmer, (1826–1902), eponymously named P. Palmer & Company. In 1856, 21-year-old Marshall Field (1834–1906) moved to the booming midwestern city of Chicago on the southwest shores of Lake Michigan from Pittsfield, Massachusetts and found work at the city's then-largest dry goods firm – Cooley, Wadsworth & Company. Just prior to the American Civil War, in 1860, Field and bookkeeper Levi Z. Leiter, (1834–1904), became junior partners in the firm, then known as Cooley, Farwell & Company. In 1864, the firm, then led by senior partner John V. Farwell, Sr., (1825–1908), was renamed Farwell, Field & Company. only for Field and Leiter to soon withdraw from the partnership with Farwell when presented with the opportunity of a lifetime.
Frango
A few months after Marshall Field's agreed to buy out Frederick & Nelson's and take control of the Seattle company in 1929, the Frederick & Nelson candy makers in Seattle were summoned to Chicago to introduce Frango mints to Marshall Field's to help build slumping sales during the Great Depression. Soon, the candy kitchen at Marshall Field's had produced its own Midwestern interpretation of the Frango Chocolate recipe. Although the Northwest version still uses the original Frederick & Nelson recipe, the Marshall Field's recipe has been modified a few times. This, as well as the use of different ingredients and equipment, would account for any difference in taste between the two versions.