Do they live in the station? (12)
This is more speculative. We don't know, but we're about to find out.
a dirty dog, quite comfy. (18)
If a dog isn't part of the family, then we don't know who is!
Somebody embroidered the doily. (32)
Someone in the family has to put these homey touches on the place. Perhaps a mother figure? But if there is a mom in the picture: where is she? Has she left? Even died? Could that explain why things have gotten so shabby around the place?