After a woman became pregnant with Col. Buck's son, he forced her out to take care of the babe alone, later having her burned as a witch. The son ran off with the witch's leg that had rolled out of the bonfire, and he later cursed the colonel's tomb, which now bears the stain of a leg, despite several attempts to clean, replace, or remove it.
The "tomb" of the town's founder, Colonel Jonathan Buck, features a mysterious stain -- the image of a woman's stocking-clad foot, or maybe a boot.