<Tr> <Td> Julius Rosenberg </Td> <Td> electrocution </Td> <Td> espionage </Td> <Td> June 19, 1953 </Td> <Td> New York State Prison, Sing Sing, Ossining, New York </Td> <Td> </Td> </Tr> <Tr> <Td> Ethel Rosenberg </Td> <Td> electrocution </Td> <Td> espionage </Td> <Td> June 19, 1953 </Td> <Td> New York State Prison, Sing Sing, Ossining, New York </Td> <Td> </Td> </Tr> <Tr> <Td> Carl Austin Hall </Td> <Td> gas inhalation </Td> <Td> kidnapping and murder </Td> <Td> December 18, 1953 </Td> <Td> Missouri State Penitentiary, Jefferson City, Missouri </Td> <Td> </Td> </Tr> <Tr> <Td> Bonnie Brown Heady </Td> <Td> gas inhalation </Td> <Td> murder </Td> <Td> December 18, 1953 </Td> <Td> Missouri State Penitentiary, Jefferson City, Missouri </Td> <Td> </Td> </Tr>

Who was the last person executed by the federal government