The facts and ideas that go into a book come from innumerable sources, and behind the sources stand people: the men and women who have been interviewed or who have chatted with the author, who have written letters and supplied printed and documentary materials, and who have commented on portions of the manuscript. In the present instance the most important and generous contributor was the book's subject, Alfred Mossman Landon, who did all of these things unstintingly. It has been my good fortune to know Alf Landon personally, and I doubt that any biographer could have had a more cooperative subject. I am deeply indebted to him, not only for granting me full access to his papers but for a hundred hours of interviews during which he discussed himself with the utmost candor and straightforwardness.
I am also indebted to many others. I am grateful for the help of manuscript curators, archivists, and librarians, such as Nyle Miller, Edgar Langsdorf, and Robert Richmond at the Kansas State Historical Society; George Caldwell and Laura Neiswanger at the University of Kansas; Herman Kahn, Robert Jacoby, and George Roach at the Franklin D. Roosevelt Library; David Mearns and Joseph Vance at the Library of Congress; Jane Smith at the National Archives; and John Russell and Margaret Butterfield at the University of Rochester. For information and insights about Landon, Kansas, Republicanism, and the New Deal, I am thankful to scores of people, particularly George Anderson, John D. M. Hamilton, Karl Lamb, James Malin, Roy Roberts, Ralph Robey, Richard Ruetten, and Arthur M. Schlesinger, Jr. I benefited greatly from readings of drafts of the manuscript by George Lobdell of Ohio University, George Mayer of Purdue University, and Elmo Richardson of Washington State University. LANDON OF KANSAS probably would have been a better book had I