In the book titled A History of the 1871 Pennsylvania Colony of Osborne County, Kansas, by Von Rothenberger. It states their names in the index as being Charles and William Bullock. On page 14 it reads "On the 3rd of July, a year ago the Indians made a raid thru this section and made an attack on Bullock's Ranch but were repulsed by the Bullock brothers and a few who had taken refuge in the stockade."