Jo was born November 27, 1932 at Clear Lake, SD, the daughter of Thomas H. and Dorothy (Bork) Law. She attended grade school at St. Theresa's Catholic School in Huron and then attended school at Clear Lake for two years. She graduated from Gary High School in 1950 and then entered McKennan Hospital Nurses Training, graduating in 1953. Jo married Erwin T. Oswald on February 4, 1954 at St. Peter's Catholic Church in Gary. They raised three children, Stephen, Kay, and Mark. Jo worked as an RN at the Clear Lake Hospital and the Good Samaritan Nursing Home in Clear Lake. She and Erwin moved to Watertown in 1987. Erwin passed away in 1997. Jo moved to Sioux Falls in 2010 to be closer to her children. She was an active member of St. Peter's Altar Society, the TNT Club, Hobby Club and Daughters of American Revolution. She loved her family dearly and enjoyed reading, playing games, sewing, cross-stitch and her Kindle. She is survived by her children, Stephen Oswald, Kay (Rick) Farris and Mark (Vicki) Oswald, all of Sioux Falls; five grandchildren, Megan (Eric) Staebell, Scott Oswald, Dan Oswald, John (Rachel) Farris, and Todd Farris; four siblings, Tom (Sharie) Law, Sharon (Jack) Gunn, Nancy (Dick) Reddy and Dave (Sandy) Law; and many dearly loved nieces and nephews. Jo is preceded in death by her parents and her husband, Erwin