Also, look for reptile/amphibian shows near you. In addition to the shows themselves, see if they have websites, and if those websites have vendor lists. That's how I found prospective breeders for our 3 reptiles (you will still have to do some vetting).
Your home state will dictate what you can have. CA is a no no state for Colorado and Cane (all subspecies too).
That being said: You can get them but there are hefty fines..
If possible: Ebay sells tadpoles and try your luck with that: Very fun and you will see how fast they grow and other cool habits-- Not easy but very do-able.
I'm not finding a difference between American toad and Eastern toad. Some sites are using them interchangeably.
Depending on where you live, this might be a good time of year to dig one of the above up (so to speak). I wasn't kidding about their living in my shrubs & meadow.
What humor? They do live in our yard and back 4! They don't seem to bother much, they're good for soil aeration, and provide food for the garter snakes.
It's been cold here so they may already be hibernating (or whatever toads do), but it's still warm in other parts of their habitat.