I know exactly where the properties are that you wish to find. The properties look nothing like they used to all those years ago. Casa Solana is now a part of Royal Palm Villas - a condo complex. And the Bellamy property is a few hundred feet to the south and now called Grand Colony, also a condo complex.
Ms Juanita lives in town in the Alijua building- right in the heart of town on the main front street. Her kids and grand kids all live on the island and can be relatively easily tracked down. George and Alida Alamilla.