First, are you going to tan them yourself or have them sent out? Either way, figure out if you can in fact salt the green hides. Honestly, you are not going to have much luck keeping them in a cooler. At least let the hides hang fur side out overnight to take good chill before you put them in the cooler.
Here's another thing, and I hate to do this to you but... You are going to find very few furbearers in the deep woods in SE Ohio. There is just nothing for them to eat.
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Endeavor to persevere.