History of northern Wisconsin: containing an account of its settlement, growth, development, and resources, an extensive sketch of its counties, cities, towns and villages, their improvements, industries, manufactories, biographical sketches, portraits of prominent men and early settlers, views of county seats, etc. Chicago: Western Historical Co., 1881. p.1157

Andrew Oertel, expressman, etc.; was born in Germany August 22, 1828; came to the United States in 1865 and located at Two Rivers, Wis., where he worked in a tannery and peddled goods over Wisconsin. In 1869 he moved to Oshkosh and engaged in his present business; also carries the U.S. Mail between depot and post office. Was married in Germany Oct. 11, 1855, to Miss Amelia Zwengee; they have three children- Henry, Moritz and Ida.