My Mom made those. We called them the Happy Sad doll. I did find a pattern. If I can find it I will add it to this post.
I googled 'happy sad doll' and got lots of hits. I didn't see the pattern but I have seen it online before. I did find this blog and it looks like a tutorial.
http://theknittygrittyhomestead.blog...ial-kinda.html