The following data is extracted from The Book of Clevelanders, A Biographical Dictionary of Living Men of the City of Cleveland, Burrows Book Company, 1914.
Konigslow, Otto; manufacturer; born, Cleveland, April 16, 1860; son of Herman and Charlotte Brunna Konigslow; studied public schools, Cleveland, till 10 years old; went to Germany, and studied in Hamburg, until 14; attended technical school and served apprenticeship in machine shop; married, Cleveland, Jan. 11, 1879, Lena Kalliker; issue, four children; business career, Lake Shore Shops, White Sewing Machine Co., asst. in Experimental Dept. later became a designer; three years chief inspector; organized the Otto Konigslow Machinery Co.; incorporated in 1894, as the Otto Konigslow Manufacturing Co.; pres. of the Company; special attention given to making automobile parts; an expert on sheet metal; has taken out over twenty-five patents during business career; Republican; member Presbyterian Church, and Cleveland Gesang Verein.
Source: The Book of Clevelanders, A Biographical Dictionary of Living Men of the City of Cleveland, Burrows Book Company, 1914