My Dad owned a sport shop in Eau Claire, so he knew a lot of guys that went for smelt every year. He never requested any, but it never failed, we would wake in the morning to a 5 gallon bucket (sometimes more than one bucket) almost every morning during the run. Mom would wash them, then bag them whole and freeze them. When it was time for a fry, she pulled the bags out of the freezer, and as soon as she could, pop them apart. then us kids got an assembly line going, one would cut the head off with a scissors, the next would slit the belly, the next would use their thumb to pop the frozen guts out whole, the last one washed them. Dad made the beer batter and did the dipping, Mom would start frying. I remember Mom froze them in bags of 40, and I think we went through 3 or 4 bags a meal.
Before the guts could smell, Dad had them buried in the garden.