I haven't used the yarn, but it looks like a regular worsted weight. It's claim to fame is that it comes from American sheep and is spun in a historical mill. It might be lovely, but for a toy? I don't think I'd use wool for a toy anyway--you might need to wash it.
I'd look at Plymouth Encore worsted weight. It comes in tons of colors, and is a washable blend of acrylic and wool.
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IngridKH on Ravelry