Mike I hope you don't mind, I entered this pedigree into my software on my laptop out of curiosity, it only goes back 4 generations, so without the tweety/Winchester blood being factored in the COI (coefficient of inbreeding) is 26.5625%.
The COR, which is "coefficient of relationship" for tweety alone is 38.8889% without figuring in the tweety/ Winchester cross behind Obama...


Hopefully you can see these, definitely going to have to zoom in...