They're not in www.findagrave.com
I did a Google search for the cemetery and found information about the cemetery at www.osagecounty.org/localhist/towns-c.htm
You can contact the Osage County Historical Society, www.osagecounty.org/g-center.html
who has cemetery information. However they probably won't be able to tell you where they're buried in the cemetery. If they are unmarked graves, they might not have their names in their records. Successful Searching!