Which president was not a citizen of the U.S.A. when he died?
The one president who was not a U.S. citizen when he died was the 10th President, John Tyler. A native of Virginia, he died in that state on Jan. 18, 1862 as a citizen of the Southern Confederacy. This information comes from the 1997 Information Please Almanac, edited by Otto Johnson, Houghton Mifflin, Boston & New York, 1997, p. 660.