Eastern red cedar seedling I'm guessing
Can't tell too well from the picture but looks to be something I see quite regularly. If it is it isn't even a tree.
But I like.the idea of it being a ERC
Not certain what they are but they do not look anything like an Eastern Red to me. The leafs are wrong and don't grow downward like that. I have never seen my Eastern Reds with a green trunk. The pictures you show look to grow similar to a Norfolk Pine but those would not survive Winter in your area...
Grimmy
The lil thing in there looks more like j. Crack!
Eastern red cedar seedling I'm guessing