I also got sidetracked by the married David Shanks who died in Texas in 1882.
Getting back to the single Col Shanks, who died in Laramie, wonder if you could tell me his death date there in Laramie and which Laramie newspaper mentioned his grave in 1884 on Memorial Day.
So, the family history document I read in the Pleasant Hill Hist Society( MO) several years ago is true."He went west and died in a few years from the effects of his wounds which were 8 in number. He never had the use of his left arm or hand from the effects of his last wound." The lady that wrote that probably didn't know of that 1868 gunfight wound in Laramie that you mentioned.