Thank you, adamstrange. From what I gathered so far, I believe Mitsuru did not have children, but both Happy and Jayne had children. I contemplated reaching out to them, but thought it would be best to put this video out first since interviewing them was not absolutely critical for establishing the true collectors' identities. I might try to reach out to them someday, but I struggle with this sometimes. I think about what Alan Bahr said about Bette's relatives and that they were very private. While this may be a different side of the family, I'm sensitive to this type of thing and want to be as respectful as possible.
I see other posters' comments. Thank you so much. I'll comment on the rest later today.