Not sure if it's totaly accurate for here, but grand-relatives. It seems there are older people who just remain stuck in a specific point in time. We've all heard of or had that grand(insert relation) who just seemed to never quite be in the present. Had a great uncle and aunt whose house looked straight out of the 60's. After he died, aunt literally lost her mind to Alzheimer's.

Now that you mention Alzheimers, this troper visited recently his 93 years old affected grampa. He mistook me for one of the neighbours he had when he lived in the countryside 60 years ago and asked me where I had left my horse. He then tried to excuse himself because he had to go to a hospital in another city to look after his daughter: an aunt of this troper that died of a flu in the late 50s, when she was 5.

This one's more of an object than a person. One of the cafes at this Troper's college has a computer tucked away in a corner. A computer that looks like it fell out of a time portal from 1995. It actually still works, although you can't really access anything beyond the college website on it. I sit near it between classes and at least once a day I hear someone walking past say "Check out that old computer! I can't believe it still works!"