William R. Holcomb died 14 Dec 1967 in Ashton, Fremont, Idaho.
Contact the Ashton Public Library, 999 Main Ashton, ID 83420, 208-652-7280 and ask if they can send you a copy of his obituary.
If they don't have the microfilm, contact the Idaho Genealogical Society, www.idahogenealogy.org
and ask if they have the microfilm. Successful Searching!