Collection contains photographs, programs, and press notices of his performances; manuscripts of songs written for him by composers including Castelnuovo-Tedesco, Lalo and Pizzetti; five collections of published songs; a scrapbook of programs from his first year as manager of the Metropolitan Opera.
File consists of letters from A. Baldwin Keenan and Veronica (Roni) Whelan, including a birth announcement of their daughter Claire Simone and a short typed letter from Connie Ellis, Nouwen's administrative assistant.
File consists of letters from Hugo Kamya, including two short typed letters from Nouwen, copies of cheques, and a copy of Kamya's Masters' thesis "Victim and Agent: counseling as healing encounter" written for Harvard Divinity School.
File consists of letters from (Robert A.) Jonas and Margaret, his wife, including a copy of a letter sent to Jonas from Frank J. Cunningham of Ave Maria Press, and copies of newspaper articles regarding the Sisters of Mercy of Alma, MI.
File consists of letters from Jeff Imbach, including news articles about Gordon MacDonald of InterVarsity Christian Fellowship, and his own typescripts on adultery, "Hadewijch of Antwerp", "Love and Sexuality: developing a positive vision for celibate relationships", "Why I have pursued a Christian Mysticism” and "The Quest for a Fresh Vision of Reality: an investigation of sacramentalism as a paradigm for Evangelicals". There is also a letter from Joe Peacock, writing from Amsterdam. It is not clear if this letter is in any way related to Imbach but it remains to maintain original order.