National Association of the Deaf (United States)
The National Association of the Deaf (NAD) is an organization for the promotion of the rights of deaf people in the United States. NAD was founded in Cincinnati, Ohio, in 1880 as a non-profit organization run by Deaf people to advocate for deaf rights, its first president being Robert P. McGregor of Ohio.
Source: Wikipedia — National Association of the Deaf (United States) (CC BY-SA 4.0)