Briefe von Schönberg an A
| Empfänger | Firma |
| 8-Uhr-Abendblatt | |
| A. Warmut Akt.-Ges. Spediteur | |
| A.E.G. Installations Abth (für Licht) | |
| ACA | |
| Akad für Mus u Kunst | |
| ALACA | |
| Allgemeine Ortskrankenkasse | |
| Altadena, Office of the Sheriff | |
| Am Lea for a Free Pal | |
| American Committee for Relief of Yemenite Jews, Israel | |
| American Fuel Relief for Austria | |
| American Lawn Tennis | |
| American Mercury | |
| American Stationery Co | |
| Amerika-Institut | |
| Ammre GmbH | |
| AMPAS | |
| Amtliche Reisebureau | |
| Anton Schroll & Co. GmbH | |
| ASCAP | |
| Assicurazioni Generali | |
| Assoc Music Publ | |
| Ateneo Barcelones | |
| Atlantis Verlag | |
| Austria, Consul., Berlin | |
| Austria, Erste Mil-Vers-Anst | |
| Austria, Regimentskanzlei des ehem. K u. K | |
| Autoren Gesellschaft | |
| Abendroth, Hermann | Schuttenfelder-Oberre[al?]Sch |
| Abraham, Gerald | |
| Abraham, M.S. | Independent Music Publ |
| Abrams, Samuel J. | Temple Chabei Shalom |
| Achron, Marie | |
| Adami, Trude | |
| Adams, Mildred | Emergency Rescue Comm |
| Adams, Robert D.W. | Univ of Kansas City |
| Adler, F.Charles | Bote & Bock |
| Adler, F.Charles | Edition Adler |
| Adler, F.Charles | Schirmer |
| Adler, Guido | |
| Adler, Oskar | |
| Adler, Raïssa | |
| Adler, Rudolf | |
| Adlon, [?] | Hotel Adlon |
| Adorno, Theodor Wiesengrund | |
| Aelberts, Pierre | Dynamo Éditions |
| Ahlert, Fred E. | ASCAP |
| Alessandro, Victor | Oklahoma Symphony |
| Alexander, William | |
| Allatini, Luc | |
| Allen, Bennet M. | UCLA |
| Allen, Leroy W. | UCLA |
| Alter, Georg | Verein f mus PrivAuff |
| Altmann, Wilhelm | Deutsche Musiksammlung |
| Amersdorffer, Alexander | Preuss Akad |
| Amet[lla?], Claudio | |
| Anderle, Franz | |
| Andreae, Volkmar | Tonhalle Zürich |
| Andrian-Werburg, Leopold | Hoftheater |
| Andrus, John R. | Assoc Music Publ |
| Anthes, B.A. | Mozart-Stiftung |
| Apel, Willi | |
| Apostel, Hans Erich | |
| Appel, Richard G. | Public Library Boston |
| Appelbaum, Anne Elizabeth | Comm Jewish Army |
| Aram, K. | |
| Aranyi, Francis | |
| Archipenko, Alexander | |
| Arlt, Gustave Otto | UCLA |
| Armitage, Merle | Look Magazine |
| Aron, Paul | |
| Arvey, Verna | |
| Asch, Joseph | |
| Askwith, Herbert | Am Friends Heb Univ |
| Asofsky, Isaac L. | Heb Immigrant Aid Soc |
| Aucoin, Lionel A. | |
| Aussermann, Bernhard | TennisAbt "Realia" |
| Avakian, George |
