So...I do have William Green in my line...he is the son of Wilson Willis, brother to my John F and brother to James Williamson (all lived in Tennessee and Illinois). I found several census' with William Green (a couple of which were in Kansas). I've been trying to find out if William Green is somehow related to the Jane Willey and Harry/Harvey Willey I found living in the same household as my William Abe.
Anyway, Wilson is son to William who is son to William who is son to Joseph. That is as far as I have been able to prove. I believe my line is accurate as well as another Willey researcher, Rebecca Hitzman (line = Adam/Lawrence...). I hope this helps!! I'm glad you responded to the post! Oh, if you want access to my line (Willey/Ortiz), just do a request from Ancestry; I will approve it.
One other thing...I think it's completely awesome that you have foster kids!!