"A fisherman, angry with his wife, Anna, for serving him nothing but cornmeal and molasses, one day adds flour and yeast to his porridge and eats the resultant bread, while cursing, 'Anna, damn her.'"
This legend is considered dubious at best by food historians, despite not having a confirmed explanation for the name. It is also not readily agreed exactly when or where the bread originated, except that it was before 1940.
The Smith Family of Rockport, MA, who claim to have invented the bread, and did run an anadama bread bakery.