We used to do a whole set of disaster songs including the following. I beleive these are all in the DT database:

Jay Gould's Daughter
The Wreck of the Old 97
Amelia Earhart's Last Flight
The Baltimore Fire
The Brooklyn Theater Fire
Lady Franklin's Lament
The Mermaid
Rye Cove
The Galveston Flood
The Ship Titanic
The Titanic (Leadbelly's)