Thanks to David Karcher and Frank Goetz and the staff at Oak Woods Cemetery, the grave of Salmon Oliver Levinson has been found:
It's not that it had been lost so much as that nobody had looked for it. Various websites identify the graves of all the supposedly notable people in this same cemetery. None mentions Levinson.
If you don't know that Levinson started a movement that created a treaty, still on the books, that bans all war... If you don't know that war was perfectly legal until that happened... If you don't appreciate what this did to stigmatize war, reduce war, prevent wars, allow the first-ever prosecutions for the crime of war, and advance the cause of war abolition... you haven't read my book on the subject, which Ralph Nader once put in his annual list of the books everyone should read:
I'll be speaking about this in Chicago with Kathy Kelly on the 87th anniversary of the treaty's signing.