Leonard Walter Jansen was born June 19, 1924, in Dallas, SD, the sixth child of thirteen to Albert and Lena (Gruhn) Jansen. He attended several country schools and graduated from Dallas High School.
On February 7, 1946 Leonard married Donna Mae Wardrip. To this union two children were adopted, Mary Jane born March 31, 1948 and David Leonard born October 20, 1950.
In 1953, Leonard and Donna bought the Henry Saathoff farm west of Dallas where he showed his great love for farming. Upon their retirement, they built a new home in Gregory and spent many winters in Arizona until 1997 when Donna was diagnosed with Alzheimer’s and they remained at home in Gregory. Donna died suddenly on May 26, 1999.
On August 11, 2000, Leonard married Clarice (Hight) Christiansen. They then sold the house in Gregory and moved back to the farm west of Dallas.
After a fall in their home, Leonard entered Rosebud Country Care Center in December of 2015. He passed away suddenly on Dec. 4, 2016 at the age of 92.