N/A
- Buyer MEG Kimsey Mason and Michael Scott Mason
- Seller Graham M Avis and George and Joan Lena Avis Geoffrey (trust)
N/A
- Buyer Geoffrey George, Joan Lena Avis (trust), Geoffrey George Avis (trustee) and Joan Lena Avis (trustee)
- Seller Geoffrey George and Joan L. Avis
N/A
- Buyer Geoffrey George and Joan L Avis
- Seller Zoological Society of S D