Therefore , shortly after Oakland was added to the National Register of Historic Places on April 28 , 1976 , the Historic Oakland Foundation was established .
Because of this , many grave sites have fallen into disrepair from neglect and sometimes vandalism .
Shortly after Oakland was added to the National Register of Historic Places on April 28 , 1976 , the Historic Oakland Foundation was established .
Because of this , many grave sites have fallen into disrepair from neglect and sometimes vandalism .