They are a perfect nuclear family, like from the 60s TV commercial or sitcom.
Now, both of those sims are alive and well.
John Doe and Jane Doe are PLACEHOLDER names for when the real name is irrelevant (like in an example) or unknown (like unidentified murder victims).
Okay, my theory about the Doe family goes like this. If anyone here is also fascinated with this household, I'd love to hear your theories about them! I will post my own theory about them in a comment. The most extensive discussion on them I've managed to find is this forum thread. There are plenty of theories about them on the Internet, but nothing solid, since EA has not developed their story as much as other families' in this world. It has this Stepford Wives vibe, which is my favourite type of horror. To me personally, this is the most fascinating family in Midnight Hollow. You can find more information about them at The Sims Wiki. Nothing mysterious seems to be happening here, but didn't their house used to have a basement? He works hard but comes home in enough time to teach his kids a lesson or two about life and talk to his wife about her day. He feels successful in life and supported by his family. She's neat, nurturing, loves her kids, and can make a mean pot roast! Meanwhile, John is rising in the ranks at his corporate job. Jane is the perfect housewife, from her neat hairstyle to her fashionable yet conservative dress. Hello, /r/Sims3! So, there is this family in Midnight Hollow, the Doe household.