On the "Josiah Ricks Fortson Families" tree at WorldConnect (http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=grami&id=I07051), it is noted that:
Sam died Intestate in Greene County, Alabama. His death and issue can be proven only by Court records in Lauderdale County, Mississippi in the 1850's when his sons tried to get their share of William Fortson's estate.