So, attempting to wrap my poor brain around all of the information...
The gene for KingDinker is probably recessive, which would mean he is homozygous for KingDinker. He threw a homozygous when bred back to mom, so mom has to have at least one gene, with the dad giving another copy of the gene...
So in total, you would have in your possession 3 animals who definitely have the KingDinker gene right now... with any offspring from KingDinker himself ALSO carrying at least one copy of the gene each(hets).
Do you still have KingDinker's dad?
Also, I wonder if mom actually is also KingDinker but it's being masked by the super mojave white washing it out?
Fascinating and I can't wait to see more updates. Thank you so much for sharing the whole process with us all. Sorry about the stillborn baby.