Just reading through your analysis Kayla and I think its safe to say Donnel is pure Galaxy Star based on his parents age. In the shown pedigree they are actually only 10 days younger than Sherrys parents. I believe I am correct in thinking that even with Love 10 given every 48 hours that a cats minimum breed age would be 12 days, 10 days younger than Sherrys puts unpacking at 28th October since you dated Sherrys to 18th October. Given that their parents have to be at least 12 days old IF these are the very first babies from their parents then the latest the parents could have been unpacked is Oct 16th predating the release of the fall collection by 3 days so impossible to hide the Soul Whisper.
Of course if Eleanor is willing to share Donnels pedigree we can clear it up on the age of his grandparents

We just need to know that they are more than 12 days older than their offspring
I worked it out quickly and if Love 10 is given at 7, 9 & 11 days they would be ready to breed at 12 days old.