Creator
- Kirkpatrick, Ralph1
- Klein, Madeline1
- Kosciuszko Foundation1
- Koussevitzky, Serge, 1874-19511
- Labunski, Wiktor, 1895-19741
- Ladies’ Auxiliary of Stuyvesant Polyclinic Charity Musicale1
- Lavalle, Paul1
- Lawrence, Robert, 1912-19811
- Lehmann, Lotte1
- Leschetizky, Annette Essipova1
- Liszt Society (London, England)1
- Luce, Ruth Caster1
- Lucks, Joan1
- MacDowell Club Benefit Concert1
- Maddry, Mary1
- Maillard-Kesslere, G.1
- Major, Vivian1
- Mannes, David, 1866-19591
- Markot, Henry1
- Mayer, Ann1