Committes of correspondence
The Correspondence School was created in 1922.
The Committee of Correspondence Newsletter was created in 1961.
American School of Correspondence was created in 1897.
International Correspondence Schools was created in 1890.
Correspondence Publishing Committee was created in 1951.
P.'s Correspondence was created in 1845.
International Council Correspondence was created in 1934.
All of these
Co-operative Correspondence Club was created in 1935.
International Correspondence Chess Grandmaster was created in 1953.
The committes are 17