code: @Override
      public void visit(final Person person) {
          for (final GedObject gob : person.getAttributes()) {
              gob.accept(this);
              if (!dateString.isEmpty()) {
                  break;
              }
          }
      }
docs: Visit a Person. This is the primary focus of the visitation. From
  here, interesting information is gathered from the attributes. Once a
  date string is found, quit.
  
  @see GedObjectVisitor#visit(Person)