Alacoque, or Al Coq, Marguerite Marie
- Biographical portrait of the French nun and mystic. In the 1911 Encyclopædia Britannica.
- http://encyclopedia.jrank.org/AJA_ALL/ALACOQUE_or_AL_COQ_MARGUERITE_M.html

For All the Saints: Margaret Mary Alacoque
- "Dour and humorless," but still a saint.
- http://www.saintpatrickdc.org/ss/1016.htm#marg

Catholic Online: St. Margaret Mary Alacoque
- Biographical portrait.
- http://www.catholic.org/saints/saint.php?saint_id=443

Alacoque, Margaret Mary
- Brief biographical entry in the Columbia Encyclopedia.
- http://www.bartleby.com/65/x-/X-Alacoque.html

Saint Margaret Mary Alacoque, Virgin
- From the book "Lives of Saints," published by John J. Crawley.
- http://www.ewtn.com/library/MARY/MARGMARY.htm

Catholic Encyclopedia: St. Margaret Mary Alacoque
- Biographical article.
- http://www.newadvent.org/cathen/09653a.htm

The Secret of Saint Margaret Mary
- The life of St. Margaret Mary Alacoque, and her devotion to the Sacred Heart. By Henri Gheon.
- http://www.cin.org/sstmargm.html

St. Margaret Mary
- Short biography, suited to children.
- http://www.tntt.org/vni/tlieu/saints/St1016.htm

Patron Saints Index: Margaret Mary Alacoque
- Illustrated profile, with links.
- http://www.catholic-forum.com/saints/saintm14.htm