Sometimes I wonder what I truly remember or what I just think I do because of gazing at old photos in worn memory albums, aided by a few stories from my parents. It’s doubtful, though, that I remember much about Vanville, the government prefab housing project that was built for those working at the vanadium mill in Rifle, Colo., in the early 1940s. At the mill, the mineral roscoelite, containing vanadium and uranium, was turned into yellowcake, a uranium oxide product, which would become plutonium. None of this mattered to me, of course, and probably not to my parents, for they would not be aware of the health hazards until years later. Then they would whisper about those they knew who’d died dreadful deaths due to contaminated groundwater and radon…