Seth Bullock had three sisters Agnes, Jessie and Alma. Federick F. Kislingbury married Seth Bullock's sister Agnes in 1867. They had a son named Douglas. Agnes died in 1878. Federick F. Kislingbury then marries his deceased wife's sister Jessie in 1879. She dies of mountain fever.
Frederick F. Kislingbury sends 7 yr old son to brother-in-law Bullock May 10 1881 In regard to: Kislingbury, Frederick F. In regard to: Kislingbury, Douglas In regard to: Bullock, Seth
