My mom grew up on a farm in Northern Wisconsin. He learned a lot about making do with what you had around you in the event of emergencies. Mom grew up in a small suburb south of Chicago. She was interested in herbal medicine and remedies before they became popular. She learned a lot from her Mother who made all sorts of herbal tinctures and remedies from plants she grew in her large garden. After she married, Mom had a small garden in the back of the 2-flat we lived in.
So both Dad and Mom knew about Wooly Lamb's Ear, a plant that can be used as an antibacterial band-aid. It's also edible.
Wooly Lamb's Ears have greenish-gray leaves that are soft and feel furry or wooly. This is because they have a layer of hairs that makes them really soft. The shape of the leaf looks like a lamb's ear too.