- Marches--1911-19201
- Marne, 1st Battle of the, France, 19141
- Marsh, Mae, 1897-1968--Portraits1
- Maurice, Mary, 1844-1918--Portraits1
- McCrae, John, 1872-1918--Musical settings1
- Mengis, Herr1
- Merchant mariners--Songs and music1
- Miami (Fla.)--Songs and music1
- Michigan--songs and music1
- Military music1
- Military music--United States1
- Military pensions--United States--Songs and music1
- Military readiness--Songs and music1
- Militia of Mercy (U.S.)--Songs and music1
- Minstrel music--Vocal scores with piano1
- Mixed voices1
- Mons, 1st Battle of, Mons, Belgium, 1914--Songs and music1
- Moralities--Songs and music1
- Morey, Harry--Portraits1
- Morris Island (S.C.)--History--Civil War, 1861-1865.1