This series is contained in Box 13, Folders 15-27; Box 14, Folders 2-4; and Box 15. It features materials related to Condell's research on Duke Ellington. There are a number of articles about Ellington in the series, as well as notes for a book Condell was working on about Ellington. Condell attended a number of Ellington Conferences in the 1980s and 1990s and his documents from these conferences are available in the series.

This series is contained in Box 13, Folders 15-27; Box 14, Folders 2-4; and Box 15. It features materials related to Condell's research on Duke Ellington. There are a number of articles about Ellington in the series, as well as notes for a book Condell was working on about Ellington. Condell attended a number of Ellington Conferences in the 1980s and 1990s and his documents from these conferences are available in the series.