Short stories by a British crime writer who died on the Titanic

My husband says these were very cerebral. One of the stories was about a detective who bet he could get out of prison. He sent messages written with shoe polish on the middle layer of his shirts. I assured him that the LT community could find this book for him.

This is fascinating. I've looked up the impressive passenger records on Wikipedia but an author's name isn't mentioned, only that authors (note the plural) were among the second-class passengers:
https://en.wikipedia.org/wiki/Passengers_of_the_RMS_Titanic#Survivors_and_victim...

Maybe this guy?
https://en.wikipedia.org/wiki/Jacques_Futrelle

Aha, how about this story by him?
https://en.wikipedia.org/wiki/The_Problem_of_Cell_13

Collected in The Thinking Machine

Jacques Futrelle maybe?
http://www.encyclopedia-titanica.org/titanic-victim/jacques-futrelle.html

I think it's this story:
http://www.futrelle.com/stories/TheProblemOfCell13.html

That was fast! Thank you very much.

Don't thank me, thank Google ;-)

Thanks for links, Martin. I'll read the story if only because the people in his family had such striking names. And, as well, to find out what that middle layer of shirts is all about.