You can browse the Spokane newspapers I looked for the father Williams obit, but no luck. I found one for Frankie, with her last name as Herchkorn at death.
SPOKESMAN REVIEW NOVEMEBER 14, 1990
HERCHKORN, FRANKIE passed away on November 11, 1990 in Spokane. Survived by her son Leo Messerschmidt, Spokane; daughter Lea Hyland ( ) Spokane; Grandchildren ? Grzechowisk, Roger Messerschmidt, Raymond Dennis and Rhonda Rawson; 7 great grandchildren, and two nephews, ? Piper and Bobby J Wadsworth. A lifetime resident of Spokane. Funeral services will be Friday, November 16, at 1 P.M. at Sunset Mausoleum Chapel Rev. C. Scott Pyle officiating. Interment Fairmount memorial Park.
From what I can figure, both nephews of Frankie were Flossie's children.
For the newspapers, go to this site
http://www.linkpendium.com/pick the state, then county, the newspaper records. Select the link for the years you need.