I bought a Canoscan 8800 a couple of years ago -expensive but worth it; it has a set of negative carriers -35mm, slide, and 120 film. All these film types I had, plus Brownie negatives. My dad’s negatives from the 1940’s were 35mm square. The driver is awkward, but with some help from Google for procedures, I found can scan anything in B&W or colour.
I basically organized things in folders according to the source, since I had only a vague idea of the dates - Can #1 roll A, Roll B, etc. and filed them in clear plastic negative holders so I could find them again. (B&H pack of 100 sheets for $17) He had several cans of 60-year old B&W 35mm each rolled together in one big roll. Most I scanned to about 2 to 4Mp - 1200dpi for 35mm negatives, depending on sharpness. (My own digital stuff, I have folders by year, event, date - ie. “2011 - AprilEgypt - 20160428”)
Some is lost in time. He had pictures of a Boy Scout jamboree in Scotland in the mid-40s or earlier, but could not tell me who the older guy was who appeared to be the VIP scout. He has pictures of Oxford life, and some folk dancing in some English village, and stuff like that which may never be identified. So yes, get the stories while they are fresh.
I have an incredibly sharp colour slide of me and my brother when I was 2, sitting on the lookout point looking over at el Capitan in Yosemite. (Plus, about 10 times as many photos of my older brother than of me…)
Among other treasures, for example, my nephew found it interesting that my stepmother had a newspaper clipping of his mother’s early career as a Montreal TV weathergirl.
====
But just to stay on topic, my nephew and his wife, the only capable people in the local area, probably spent thousands of dollars of my parents’ money just to hire people to haul away junk after they were moved out. It wasn’t quite HGTV Hoarders level, but it was getting close. They were the generation that grew up poor and then had enough money to buy lots of good things, but never got rid of anything; and basic home maintenance was getting beyond them.