How do you think Pip discovered that his parents and five little brothers were buried?

Pip likely discovered that his parents and five little brothers were buried through a combination of the information provided by the local graveyard and conversations with Joe or other villagers. The headstone in the churchyard, which bore the names of his family, would have also served as a poignant reminder of his past. Additionally, Pip's sense of loss and curiOSity about his heritage would have driven him to seek out this information.