The group of National Association of the Deaf (NAD), dates from 1964 through 2003. The bulk dates are from the 1970s and collections is mostly correspondence in the alphabetically order, such as countries and officers from the NAD. In the folders of each capital letters, one will find individuals organized in those folders. For instance, a letter written by Gary Olsen will be found in the folder of “Correspondence – O”. All letters are in the chronological order. When the NAD organized the World Congress of the World Federation of the Deaf, it was ever first held on the America soil. Yerker Andersson was a representative for NAD’s International Relations Council who was involved in the planning of the VIIth World Congress of the World Federation of the Deaf. The documents from the planning of the World Congress are found in this group.