OK CV fans, your online researcher at work here. The first photo is the wedding photo of Billy (b. July 19, 1885, at Marysville, Kansas) and Mary (b. January 13, 1881, at Mineral, Illinois) Bonnell.
The second photo has the following caption: "W. S. Bonnell, when he broke the world's record at Cedar Vale, Kansas, August 30, 1909. Time 9.5 seconds." Also shown is his horse, Romeo. (The calf is unidentified.)
(Click on the photos to see an enlarged view.) Enjoy!