Subject
- Marches1
- Marne River (France)1
- Marne, 2nd Battle of the, France, 1918--Pictorial works1
- Martin, Frank A.--Correspondence1
- Medicine, Military1
- Memorials1
- Meuse-Argonne American Cemetery, France--Pictorial works1
- Military hospitals1
- Military morale1
- Military orders1
- Military promotions1
- Missals--France--Illustrations1
- Mississippi River Valley History To 18031
- Mothers of soldiers--Songs and music1
- Mothers of war casualties--Songs and music1
- Murray, Elizabeth--Portraits1
- Music--Manuscripts--France--Illustrations1
- Musicals1
- Musicals--Excerpts, Arranged1
- National songs1