Before you invest $10.00 an hour for research, let's look at a few things.Based on your other postings on Parten/Partain/etc, and an Albert.Do you have a known connection to this Alexander, or is it based on the name only?If so, either way, more is needed even on this person.
This person was in the 1910 Census in Uniontown, Whitman County in 1900.That is proven. He was a boarder in the home of another family.Unknown connection except as a boarder.
There is no fact to prove or disprove this person was dead by 1920, or that he died in Uniontown, or even Washington State.
I checked the various cemetery listings for Whitman County without success.There are several.This one has a better transcription of cemeteries in eastern Washington: http://www.mrail.net/cemetery/cemetery.htmhttp://www.mrail.net/cemetery/cemetery.htm .But there is no indication of Parton/Partain, etc.in Whitman County, Nez Perce Co, Idaho or Latah County.
Most cemeteries are not transcribed.Of those that are, even the BEST miss graves.There are unreadible stones, missing stones, even unknown cemeteries.
Obituaries in the early 1900's were not as popular as they are today, but even today they are going out of style due to cost.If there was no family to pay for one, there might only be a funeral notice, more of an advertisementfor the funeral company than an obit.The early obits were more often written by a newspaper reporter about a famous/imfamous, rich or local celebrity, or death by accident or murder.
The Washington Library has a free service for looking for obituaries, but they look up to and around an hour.Since you don't have a date of death, that would quickly expire.The Library uses newspaper microfilms.There catalog: http://www.secstate.wa.gov/library/microfilm.aspxhttp://www.secstate.wa.gov/library/microfilm.aspx shows there wasn't a newspaper in Uniontown until 1981."IF" he did die in Uniontown, living as a boarder, chances are there was no family to pay for an obit.