Hi, I found two Juanita Mace's. A Juanita A. Mace b. July 10, 1906, Last Residence=98061 died March 24, 2004 in Rollingbay, WA. Source: Social Security Death Index, Washington State Digital Archives.
A Juanita R. Mace b. Aug. 10, 1928, Last Residence Zip Code=98625, Kalama, WA died Jan. 8, 2009. Source: same as above.
Contact the Washington State Library, sos.wa.gov/library/ask_form.asps and they provide copies of obituaries [if they have the newspaper] at no charge. If there is a doubt about which Juanita, request copies of both. Successful Searching!