The Theft of Thor's Hammer
White Hawk, the Lazy
In her 19th century book American Indian Fairy Tales, Margaret Compton recorded the story of "White Hawk, the Lazy." In this tale, a young man named White Hawk disguises himself as a girl and marries his enemy, Red Head. Once they're married, White Hawk kills Red Head. Does that sound like Thor and Thrym or what?
You can read the full story here.