The first stop in Kansas was the Johnston Public Library in Baxter Springs, Cherokee County. Apparently an index to the cemetery hasn't been published, at least the girl at the reference desk didn't know anything about it. She did give me directions to the cemetery though.
Gravesite of Jacob Henry Parkison and Roxie Arminta Joslin Parkison at Baxter Springs Cemetery, Cherokee County, Kansas. Jacob is a half-brother of my 2nd Great Grandfather William Brubaker and Roxie is a sister of my 2nd Great Grandmother Malissa Joslin Brubaker Bower.
The marker for Jacob and Roxie is in the lower right corner. Several of their children and grandchildren are buried in rows to the north of Jacob and Roxie. It is quite a large cemetery and it took about an hour to find their graves. I'm really glad it turned out to be a nice day!