user: Question: who is the vacator whre the district is New Jersey 2nd?
Columns: ['District', 'Vacator', 'Reason for change', 'Successor', 'Date successor seated']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['New Jersey 2nd', 'Vacant', 'Rep. T. Millet Hand died during previous congress', 'Milton W. Glenn (R)', 'November 5, 1957']
SQL:

assistant: SELECT "Vacator" FROM "Table" WHERE "District" = 'New Jersey 2nd';