I think the earliest memories I have are quite similar. I'm beginning to think that I may have a lot of crap locked up in my brain somewhere, as I've started having memories pop up here and there, nothing specific that I can figure out yet, but they're there. Some of them cause me to feel uncomfortable, even though there is nothing apparent in the memory that should do that.
Anyway, the early memories I do have are kinda the same thing. No showers though. And I agree with the assesment, from what I know about this kids family, I would be neither shocked or amazed if the kids in the family weren't all being hurt by both parents.