Mine all died of old age. I know starvation and work accident can also kill our poor villagers. Anything else you know of?

Disease is the only other cause of death besides starvation, work incident, and old age.

one of mine died of unknown causes.
a random event came up and said he had bad stomach aches and my tribe "might" have the skills to fix him. So I clicked on do procedure and he died

I had a tidal wave sweep a bunch out to sea...but they didn't get gravestones.

Maybe they got swept back to the area where the VV 1 or 2 are living?

Maybe! I hope they didn't die

that is sad Breebie. One time I had an event when this guy saw a crate he got really sick and his heatlh bar almost wiped out, but I got 500 food and he did regain his health. Then there was another event that took away 2 or 3 of my villagers there were fish flopping around on the sandy part that was supposed to be ocean a farmer saw the fishes and thought that he could catch them because they were not in the water another villger warned the farmer that he could be sucked away by a powerful tide if he went to get the fish I thought "Well what could happen it just means I will get loads of food!" So my farmer didn't listen to him and then the tide pulled him under before he knew it a little boy from a event, a builder, and a fellow farmer went to go save the man but after hours of waiting none of them came back. All of them drowned and one of them was a kid! I was so sad after that event.