After moving back to
Nebraska, she married David Harrison "Harry" Yost on July 6, 1929, and the couple lived on a ranch in the
Box Elder Canyon, south of
North Platte, Nebraska, for 30 years. They had one son, Thomas Snyder Yost. Harry fell ill and spent his last five years at the Grand Island Veterans Hospital. During those years, as Nellie spent about 10 days out of each month at the hospital, she would sit by his bed side, writing manuscripts in long hand. He died in 1968. She moved to
North Platte, Nebraska, where she was active in the Lincoln County Historical Society. She was very active while in the Historical Society as they worked to open the Lincoln County Museum in 1976. She was active as well in
Nebraska Writers Guild. She was active in Riverside Baptist Church where she married Frank A. Lydic on August 30, 1984. He was a long time friend and fellow writer. Frank died on November 9, 1991. Soon after, while finishing a trip to promote her last book, she developed pneumonia and was hospitalized. She was transferred to a hospital in Lincoln where she died on January 16, 1992. She was buried next to her first husband at
Fort McPherson National Cemetery. Her information was carved on the back of his gravestone with the epitaph, "She Loved Life." ==Writing==