I read through them and definitely recognize them from stuff I have seen posted.
I don't recall the website or author either.
One is Matt W's from his "Morrow Project Ideas" blog.
https://morrowproject.wordpress.com/...w-descendants/
As second belongs to Matt W as well.
https://www.dropbox.com/sh/ml8dz1d82...B1%5D.pdf?dl=0