Mackey, John Clifford, 1892-1983 Title: Mackey, John Clifford, 1892-1983 Relation: LBJ Connection: Statistician for the United States Department of Agriculture Identifier: mackeyj More Less Citation Mackey, John Clifford, 1892-1983, Biographical info page, LBJ Presidential Library, accessed June 05, 2024, https://www.discoverlbj.org/item/mackeyj ← Previous Item Next Item →