Sedonia was born on September 9, 1921 at home on a farm near Colome, SD to Lawrence and Marie (Spacil) Stritecky. She attended rural schools in Tripp County and attended Winner High School, graduating in 1940.
An adventurous young man swept her off her feet and she and Lawrence Wagner were married in Colome on June 18, 1940. They purchased Sedonia’s parents’ farm south of Winner in 1942, where they lived until 2006 when Sedonia suffered a major stroke. Following the stroke, she joined Lawrence at the Elder Inn. She moved into Winner Regional Long Term Care in August, 2010.
Sedonia was active in church and community. She was a lifetime member of the Immaculate Conception Catholic Church, the American Legion Auxiliary, Catholic Daughters of the Americas, past member of Immaculate Conception church choir and Eucharistic minister, board member of Winner Senior Citizens, and Wilson Extension Club.
Lawrence and Sedonia shared many interests including square dancing and ballroom dancing (they danced the polka at their 65th wedding anniversary), attending Western Fraternal and ZCBJ Lodge meetings, supporting the Tripp County Democrats and Tripp County Historical Society.
Lawrence and Sedonia were instrumental in establishing the Tripp County Rural Water District. In recognition of their contribution of the land for the first well, a scholarship has been established in their name. The family was honored as the 1996 Farm Family of the Year by the Winner Chamber of Commerce.