Do you have ancestors who have been in a disaster anywhere in the world?
The WorldWide Disasters Project has free-space pages for Explosions, Tsunamis, Plane Disasters, Forest Fires, Hurricanes as well as Typhoons, Tornados, Black Death, Blizzards, Avalanches, Dust Bowl Disaster, 1918 Flu Pandemic, Industrial Fires, Mudslides, Mining Disasters, Oklahoma City Bombing, Volcanic Eruptions, 9/11 Subproject, and the Titanic subproject, and Mining disaster subproject.
This list is just the "tip of the iceberg" for disasters that have occurred worldwide, with no limit to the era. As you can see we have covered the most recent disasters. This project covers survivors as well as rescue workers.
Example: https://www.wikitree.com/wiki/Space:Disasters Worldwide Disasters
If you are interested in this project, just reply here on G2G, or go to the project page to request to be awarded a badge. We will get a badge awarded to you.
There is always room for more space pages on topics not yet covered!