Last Updated on August 3, 2012 by
O.G. Tremaine, M.D., was born in Oconomowoc, Wis., in 1854; moved to Hamilton County, Iowa., in1867. He began the study of medicine in 1877 and graduated from the Hahnemann Medical College, of Chicago, in 1880. He located at Ida Grove in Oct. 1881, and engaged in the practice of medicine.