Series I: Letters, 1929-1943, includes correspondence from George Ade, 1866-1944, to Cyril Clemens dealing with Ade's writings; literary figures; publishers and illustrators of his books; actors who appeared in his play, "The County Chairman," produced in 1903; the national elections of 1896 and 1940; and the 1912 Republican national convention.

Series II: Letters and tributes, 1940-1951, includes correspondence from prominent literary and political figures, journalists, officers in the army and navy, and educators, written at the request of Cyril Clemens for a Wendell Willkie symposium.

Some who wrote tributes to Wendell Willkie include: Alexander Augustus Frederick William Alfred George Cambridge, 1st Earl of Athlone; Clement Richard Attlee, 1st Earl Attlee; Raymond Earl Baldwin; Dixon Ryan Fox; Clayton Meeker Hamilton; Frederick "Fred" Ingley; Harry Francis Kelly; Robert Andrews Millikan; John Ohleyer Moseley; James Thomson Shotwell; Sigmund Spaeth; Leland Stowe; James Wolcott Wadsworth; and Oswald West.