Jennifer "Jenny" Greentree (1893-1924) was a woman whose family was killed in a fire.
After the death of her family, she became homeless, and one night in a blizzard, she froze to death in the woods outside Junction City, Kansas. She carved her initials into a tree before she died.
She is suspected to be behind the death of a boy, and Garth salts and burns her corpse. However, when the boy's brother dies, Garth calls Dean and Sam for help in finding the real culprit. Dean and Sam luck out, realizing how difficult of a case this actually was but in the end figure it out.
- Her death appears to be ironic. While her family was killed in a fire, she was killed due to freezing to death.