The following section copied from a 1910 Mills County, Iowa atlas concerning road laws of Iowa might be of interest to your readers sometime when you have space for it-or any part of it:
Sec. 1571 Road Laws of Iowa-Steam engines on roads; penalty: Whenever any engine driven in whole or in part by steam power is being propelled upon a public road, or is upon the same, the whistle thereof shall not be blown and those hiving it in charge shall stop it one hundred yards distant from any person or persons with horses or other stock in or upon the same and at a greater distance away if they shall have passed it, and a competent person shall be kept one hundred yards in advance of such engine to assist in any emergency arising from frightened animals, and to prevent accidents. In crossing any bridge or culvent in the public road or plank street crossing in any city or town, four sound strong planks not less than twelve feet long, each one foot wide and two inches thick, shall be used by placing and keeping continuously two of them under the wheels. A failure to comply with either of the provisions of this section shall be a misdemeanor, punishable by imprisonment in the county jail not more than thirty days or by a fine of not more than $100 and in addition all damages sustained may be recovered in civil action against the violator, and in no case shall the county be liable for personal injuries or for damages occurring to any engine or separator.