From WPA 1941 Graves project on SD Historial Society Website, below is SD deaths on Ancestry
Joseph Rooks Washabaugh 23 Dec 1919

Joseph was born in a log cabin in Unionville, Missouri to John Rooks and Temperance Jackson. At the age of 15 he ran away from home and joined the army. He fought with the North in Company M of the 7th Missouri Cavalry during the Civil War as a Private. He enlisted on the 10 of August 1861 and was honorably discharged on the 29 of February 1864. He then served as a corporal in Company I of the 1st Missouri Cavalry from 1864 to September 1865. Joseph moved west with a group of pioneers and settled on Box Elder Creek, 26 miles south of Cheyenne, Wyoming. He freighted from Denver to Deadwood, SD from 1866 to about 1889.

Joseph married Tingaliska, full blood Sioux, around December 1866 in Colorado. They had 3 children Joseph Jr, Susie and Frank. Tingaliska died in April 1872 at the mouth of Ash Creek near Fort Robinson.

On February 22, 1873, Joseph married Kate Robinson at the Spotted Tail Agency near Fort Robinson, Nebraska. Joseph and Kate raised the three small children from Joseph's first marriage and had fifteen children of their own; Alice, Charles, Noresta, Rosanna, Nancy, Martha, Delia, William, Christina, James, Rebecca, Clara, Catherine, Agnes and Hobart.

In 1898 the family moved to Washabaugh County. At this time white men were not allowed on the reservation but because kate was native american they settled on her allotment. Joseph and kate operated a ranch with over 2000 head of cattle and 250 head of horses until 1917 when they sold all their livestock. Joseph and Kate lived on their ranch until their respective deaths. Joseph passed away on December 23, 1919 and was buried on the ranch until Kate's death in 1926 when his body was moved to Kadoka.