Graves
... that Graves's grave is unknown, but his memorial is not?
... that <b id="mwAwc"><a class="mw-disambig" href="./Benjamin_Franklin_Graves" id="mwAwg" rel="mw:WikiLink" title="Benjamin Franklin Graves">Graves</a></b><span about="#mwt21" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"`s","href":"./Template:`s"},"params":{},"i":0}}]}' id="mwAwk" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> grave is unknown, but his memorial is not?