Was Melvin Purvis the first person called “Nervous Purvis”? He was a G-man involved in the John Dillinger incident at the Biograph Theater. If not, do you know the origin of that expression? Sorry if you’ve been asked this before; I didn’t see a search function on your blog.
Also, I think “Never Nervous” is Pervis Ellison, so his nickname is “Never Nervous Pervis.”