Walter S. Bowen has written:

'The United States Secret Service' -- subject(s): United States, United States. Secret Service

United States Secret Service Protection remains a key mission of the United States Secret Service. Children of former presidents until age 16; Visiting heads of foreign states

La Fayette C. Baker, an American soldier and spy, is known for his role as the head of the Union Intelligence Service during the Civil War and for his controversial tactics to gather information. He wrote a memoir titled "History of the Secret Service of the United States."

united states secret service

1901