I have 3 villages-keep hoping something will happen in the cave but no luck! Sure would be nice to find a whole new area.

How about when a person masters their trade they get a hat? Farmers get straw, doctors white hat, builders a hard hat? That way you could find them quicker if you need a doctor in a mass outbreak of sickness (moldy food). I do give them titles; Dr. Tina and always have trained doctors every decade of life. Still think a visual clue would help.