Encyclopedias, Almanacs, Transcripts, and Maps
- Marmorstein, Arthur
- Marmoutier, Abbey of
- Marmur, Dow
- Maro of Cyr, St.
- Maronite Church
- Maronite Liturgy
- Maror
- Marozia
- Marquette League
- Marr, Wilhelm°
- Marrakesh
- Marrano Diaspora
- Marre, Sir Alan
- Marriage Encounter
- Marriage Legislation (Canon Law)
- Marriage, Prohibited
- Marroquín, Francisco
- Marrus, Michael R.
- Marschak, Jacob
- Marshak, Samuel Yakovlevich