Mary McGregor Pomeroy
Fictional Character
Southern Victory
POD: September 10, 1862
Appearance(s): American Front
Drive to the East
Type of Appearance: Direct (POV from The Center Cannot Hold onward)
Nationality: Canada
Date of Birth: c. 1907
Date of Death: 1942
Cause of Death: Execution by firing squad
Occupation: Housewife, Terrorist
Parents: Arthur and Maude McGregor
Spouse: Mort Pomeroy
Children: Alec Pomeroy
Relatives: Alexander McGregor (brother), Julia McGregor (sister)

Mary McGregor Pomeroy (1907?[1]-1942) was a Canadian nationalist and terrorist operating out of the town of Rosenfeld, Manitoba. She was the daughter of Arthur McGregor, himself an insurgent. For several years leading up the Second Great War, Pomeroy was an effective thorn in the side of the Americans occupying her country.

Mary's strong anti-American sentiment was already present when the U.S. invaded Manitoba early in the Great War. After the execution of her brother, Alexander, Mary, although a child, was increasingly outspoken about her hatred for the US. Her father turned to terrorism in the aftermath of his son's death. He was killed with his own bomb by American General George Armstrong Custer, the target of McGregor's assassination attempt.

Mary lionised both her father and brother for their efforts. Shortly after her father's death, Mary discovered Arthur's bomb-making tools, and began taking her own steps into terrorism. She bombed the Rosenfeld general store in town, which was owned by an American. She derailed an American train near Coulee, the next town to the west of Rosenfeld. She successfully framed Wilf Rokeby, whom had grown suspicious of her.

Mary's greatest act of terrorism came when she sent a mail bomb to Jonathan Moss and succeeded in killing Moss's wife, Laura and their newborn daughter, Dorothy.

Pomeroy was finally captured in 1942, partly due to information gleaned from the falsely imprisoned Rokeby. Refusing a plea bargain which would have given her life imprisonment, she was executed, becoming a "martyr" for the Canadian rebel cause. She was survived by her husband Mort and their son Alec, both of whom became involved in the Canadian insurgency after her execution.