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Col. John O. Duer
Born February 12, 1838
COL. JOHN O. DUER, of the firm of John O. Duer & Co., dealers in dry goods, carpets, hats and caps, furs and groceries, corner of First and Cedar streets, Monticello; is a native of Maryland, and was born February 12, 1838; he grew up to manhood there, and, in 1860, came to Galena, Ill. Upon the breaking-out of the rebellion, he entered the army, enlisting September 3, 1861, in the 45th Ill. V.I., and was commissioned Second Lieutenant of Co. D; he participated in thirteen general engagements, besides many fights and skirmishes; he was promoted to First Lieutenant, then to Captain, and commanded the company; he was afterward promoted to Major, then to Lieutenant Colonel, and was commissioned Colonel of the 45th Ill. V.I., and commanded the regiment; he was brevetted Brigadier General; he was in the service about four years, until the close of the war, when he returned to Galena. In 1867, he came to Jones Co., and located at Monticello; since then, he has been engaged in mercantile business here; he is doing an extensive business, and has built up the largest trade of any merchant in Jones Co.; in 1878, he built the large, commodious store he now occupies. He held the position of cashier of the Monticello National Bank for two years. He has held offices of City Treasurer. City Councilman, and school offices. In January, 1868, he was united in marriage to Miss Jennie Wonderly. from Galena, Ill.; they have four children—Bessie E., John O., Lee W. and Eugene V.

Source: History of Jones County, Iowa, Western Historical Company, Chicago, 1879, page 665.

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