Wait a second, I just had a thought. Birdie you made me think of it with your post. I remember reading in earlier posts that the curtains were open, the lights were on. So the mother, believing the children had gone to bed had closed them and turned off the lights, figuring the children in their excitement over the toys had forgotten to turn off the lights and close the curtains. That was a job they were supposed to do each night. So... Here's a question. let's say the door was open too. And the kids were outside of the house taking care of the chickens and other outdoor duties. If she closed and locked the door they'd be stuck outside. Um... Would they have banged on the door to be let in? or could it be a possibility that instead they went to say a neighbor's house or something, perhaps someone was still awake in a home nearby if they didn't want to wake their parents.