Hi Dan L,
Since the Azores are islands, land is pretty important. Generally, when a person dies, they are buried for 7 years. After that, their bones are dug up and placed in an ossuary. If the family wants the deceased there longer than 7 years, they may pay to have the person to stay there. It's like rent, the family would pay every month. If your wife's family has been paying on the graves, you will be in luck and may find something. Otherwise, there is nothing there.
Cheri
Cheri Mello
Listowner, Azores-Gen
Researching: São Miguel island: Vila Franca, Ponta Garca, Ribeira Quente, Ribeira das Tainhas, Achada