This may or may not relate to the McGovern family in Dubuque County. I find Thomas McGovern listed as the clerk for Richland township, Jones County from 1891 to 1906.Richland is the township immediately adjacent to Dubuque County. Cascade is in both counties. This listing is on page 539 of The History of Jones County, Volume I, published in Chicago by S. J. Clarke Publishing Co. Jim in Alabama