Another great idea I am sure most know about, but just in case.
Most newer cell phones have contact designations, one of which is “ICE” – stands for In Case of Emergency.
You use this designation to identify those contacts someone should call in the event something happened to you. The ICE contacts would also identify a good contact to call in the event you found someone’s cell phone.
For the older cell phone users like myself, I created a few ICE contacts simply by starting their entry with ICE and then their name. My older Nokia is not sophisticated enough to have designations, but is still the most reliable phone compared to anyone’s I know.
I learned this recommendation through a memo I received from my ambulance association, something else for us to look for on patients in the event they can not tell us information themselves.