There aren't 13 theories about how Edgar Allan Poe's mother died. It isn't absolutely certain but she died either of tuberculosis, pneumonia or some unspecified lung ailment. There are however about 13 different major and minor theories about what caused the death of Edgar Allan Poe himself, but the answer to that question is outside the scope of this question.
Some theories on what caused Edgar Allan Poe's death include alcohol poisoning, carbon monoxide poisoning, cooping, epilepsy, and suicide. Other theories suggest he was murdered, suffered complications from rabies, or had a brain tumor. The exact cause of Poe's death in 1849 remains a mystery.
The link below gives 15 published theories of Edgar Allan Poe's cause of death.
Alcohol poisoning Drug overdose Murder Suicide Rabies
Astronomy Observations and Theories - 2005 Galaxies 1-13 was released on: USA: 21 June 2006
Jane Frances died December 13, 1641, at the Visitationist convent at Moulins, France of natural causes.
There are many theories on why people believe the number 13 is unlucky, but none of them have been proven likely. Many people also feel that the number 13 is lucky.
Death Valley Days - 1952 Paid in Full 13-13 was released on: USA: 1 January 1965
Death Troopers was created on 2009-10-13.
The Dawn of My Death was created on 2008-08-13.
Prescription for Death was created on 1990-09-13.
Machine of Death was created on 2010-10-13.
Death Alive was created on 2007-03-13.
The Tide of Death was created on 1912-04-13.
The Triangle of Death was created on 2009-05-13.