<Dl> <Dt> Status </Dt> </Dl> <P> Denotes Acting Homeland Security Secretary </P> <Table> <Tr> <Th> No . </Th> <Th> Portrait </Th> <Th> Name </Th> <Th> State of Residence </Th> <Th> Took office </Th> <Th> Left office </Th> <Th_colspan="2"> President </Th> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> Tom Ridge </Td> <Td> Pennsylvania </Td> <Td> January 24, 2003 </Td> <Td> February 1, 2005 </Td> <Td> </Td> <Td> George W. Bush </Td> </Tr> <Tr> <Th>--</Th> <Td> </Td> <Td> James Loy </Td> <Td> Pennsylvania </Td> <Td> February 1, 2005 </Td> <Td> February 15, 2005 </Td> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> Michael Chertoff </Td> <Td> New Jersey </Td> <Td> February 15, 2005 </Td> <Td> January 21, 2009 </Td> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> Janet Napolitano </Td> <Td> Arizona </Td> <Td> January 21, 2009 </Td> <Td> September 6, 2013 </Td> <Td> </Td> <Td> Barack Obama </Td> </Tr> <Tr> <Th>--</Th> <Td> </Td> <Td> Rand Beers </Td> <Td> District of Columbia </Td> <Td> September 6, 2013 </Td> <Td> December 16, 2013 </Td> </Tr> <Tr> <Th> </Th> <Td> </Td> <Td> Jeh Johnson </Td> <Td> New Jersey </Td> <Td> December 23, 2013 </Td> <Td> January 20, 2017 </Td> </Tr> <Tr> <Th> 5 </Th> <Td> </Td> <Td> John F. Kelly </Td> <Td> Massachusetts </Td> <Td> January 20, 2017 </Td> <Td> July 31, 2017 </Td> <Td> </Td> <Td> Donald Trump </Td> </Tr> <Tr> <Th>--</Th> <Td> </Td> <Td> Elaine Duke </Td> <Td> Ohio </Td> <Td> July 31, 2017 </Td> <Td> December 6, 2017 </Td> </Tr> <Tr> <Th> 6 </Th> <Td> </Td> <Td> Kirstjen Nielsen </Td> <Td> Florida </Td> <Td> December 6, 2017 </Td> <Td> Incumbent </Td> </Tr> </Table> <Tr> <Th> No . </Th> <Th> Portrait </Th> <Th> Name </Th> <Th> State of Residence </Th> <Th> Took office </Th> <Th> Left office </Th> <Th_colspan="2"> President </Th> </Tr>

Who was the first head of the department of homeland security