I received some obituaries last year from the Pueblo City/County Library. They seem to have all of the old Pueblo Cheiftain newspapers in their archive, and they have been very helpful. They have sent me photocopies of several obituaries.
They aren't on line, so you'll have to make your request via snail mail. They require full name, and date of death. I think date of obituary also helps if you have it. I don't remember if there is a cost associated with the look-up (can't find any letters I sent) but most libraries are happy to accept donations, and you may want to include a small amount with your request.
Last October the Special Collections Librarian was Noreen I. Riffe. The address for the library: