George William Marquardt was a Des Moines jeweler and banker. He was born in Darmstadt, Germany and moved to Iowa City in 1854 where he opened a jewelry store and served as a director of both the First National Bank and the Farmers' Loan and Trust Company. In 1881, he established a jewelry store in Des Moines and in 1891, opened Marquardt Savings Bank. He was the director of the Marquardt Savings Bank until 1903.
From the description of Some of Us Remember George William Marquardt, 1832-1921. (State Historical Society of Iowa, Library). WorldCat record id: 554857590