This project is a result of support from fellowships from the National Endowment for the Humanities and the National Science Foundation to support research on Early ASL and sign languages of the world.

National Science Foundation
NSF Research Grant BCS1455756 to Ted Supalla

National Endowment for the Humanities
Fellowships to Ted Supalla

Georgetown University Medical Center
Building D, Suite 165B
4000 Reservior Rd NW
Washington, DC 20007

National Rehabilitation Hospital
Research Division - Suite 1270
102 Irving St. NW
Washington DC 20010


The original copies of the NAD films are stored in the archives of Gallaudet University and the Library of Congress. In 1997, Sign Media, Inc. produced a videotape copy of the NAD films.


We would like to thank former colleagues and students who have contributed to these projects. We would also like to thank Gallaudet University Archives for granting permission for our use of the historical film materials as part of our database project, and especially Mike Olsen for his important assistance in locating historical materials and making them available to us.