I have found several obits by checking the area the person grew up in, if they have moved a lot or have retired to a different area they will quite often post it in the area where they were best known. ie. My GG Grandparents grew up in Ohio, there is a big monument at a local cemetary,(but they are not buried there) they farmed for years in Michigan, when I tried to get the death certificates - no luck in either place, in going thru some of my G. Grandmothers things found a letter to her from her sister in Missouri describing they'er mothers funeral, Death cert. arrived promptly from Missouri. Still haven't found GG Grandpa's place of death. but I will. Just keep on digging.