On Halloween go down the cellar stairs backward, carrying a mirror into which you look. A face will be seen over your shoulder which will be that of your future husband.
General in the United States.

On Halloween go down the cellar stairs backward, carrying a mirror into which you look. A face will be seen over your shoulder which will be that of your future husband.
Source: Current Superstitions (1896), entry 313.
Fanny D. Bergen, editor.
Modern normalized navigation; the historical attribution above remains unchanged.