This sub-series contains correspondence relating to the donation of materials from the first viola d'amore congress to the University of Wyoming. Dated 1982-2009 with the bulk of the materials being from 2008-2009.

This sub-series contains articles, pictures, and lecture notes from a lecture on Carl Wunderle given at the 15th International Viola d'Amore Congress. Dated 1936-2010 with the bulk of the materials being from 2002-2010.

This series contains a collection of photographs taken at the annual International Viola d'amore congresses. Dated 1982-2006.

This series contains correspondence between Dr. Childs and others on the discovery of Walter Voigtlander's papers on the viola d'amore in Bartlesville, Oklahoma. Also contains other materials including appraisals, music lists, and articles on the subject. Dated 2001-2009.

Contains correspondence between Dr. Childs and Karl Stumpf on the viola d'amore. Also includes articles and programs relating to the viola d'amore. Dated 1968-2005.

This series contains photographs of Dr. Childs and his performances on the viola d'amore in Wyoming and Utah. Dated 1990-1997.

This sub-series contains Dr. Child's collection of the Viola d'Amore Society Newsletters. Dated 1977-2014.