An old map places the Ebenezer Cemetery in the vicinity of Gallatin.
For driving directions I suggest posting a request on the Copiah County Message Board at this URL.
http://boards.ancestry.com/mbexec?htx=board&r=rw&p=localities.northam.usa.states.mississippi.counties.copiah

This online transcription of the Ebenezer Cemetery should interest you.
http://www.rootsweb.com/~mscopiah/Resources/Cemeteries/Cemeteries_A_to_E/Ebenezer/ebenezer.html

FMR's second wife in buried in the Hazlehurst Cemetery.
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GSln=rembert&GSbyrel=all&GSdyrel=all&GSst=27&GSob=n&GRid=15199913&