Just thinking about what 40 years does to stuff-

Any batteries will not function. They don't have shelf lives of even 20 years. Equipment that had alkalines in it has a good chance of having batteries leak during that time and ruin the battery contacts.

Her contact lens solution (if any) would have gone bad if opened. Maybe even unopened too.

Meds would be way past expired. Adhesives (like, say, band-aids) would be useless. Elastics will have lost elasticity (start with saggy underwear and think outwards)

Rubber stuff like jar lid gaskets and bicycle tires and tubes will have dried and crumbled.

Light oils and solvents (gun cleaning supplies) will have evaporated.

Gasoline will be long past useless if still present.

Likewise any opened paint/thinners and possible even unopened ones.

Many canned materials will have eaten or rusted thru the cans.

Many lubricants will have evaporated or solidified. The bicycle wheel bearings will hardly turn and the chain will be a sticky mess if not a rusty mess.

Les Stroud's book on Kindle won't work :-)

Guitar strings will have corroded to finger cutters and any wooden guitars will have dried and cracked badly.

That's about 5 minutes worth of engineer-thinking. (sorry!)