ISS-USA historical records are housed at the University of Minnesota's Social Welfare History Archives.
 
"The Social Welfare History Archives collects, preserves, and makes available for use the archives of voluntary-sector social service and social reform organizations and the personal papers of individual leaders in the field."
If you are interested in undertaking research utilizing the Archives please download the research request form and submit it to:
Julie G. Rosicky, Executive Director
ISS-USA
22 Light St.
Suite 200
Baltimore, MD. 21202