So I've discovered that my great-grandfather Giovanni Mangani (b.1870) was a shoemaker (calzolaio) in Chiaramonte Gulfi, Ragusa, Sicily. I've tried looking online but it's hard to find things about the lives of people in particular occupations, let alone in a particular place. I don't need specifics, but would anyone know where I can find some information about the life of a shoemaker in southern Italy during the mid/late 19th century?