There's an old song called "Brady" -
"Down in St. Louis at Twelfth and Carr,
Big Bill Brady was a tending bar.
In walked Duncan with a star on his chest,
Duncan says, 'Brady, you're under arrest.'
CHO. "Brady, why didn't ya run?
Brady, ya shoulda run.
Brady, ya shoulda run,
When ya seen Black Duncan with his Gatling gun.
"When all the girls heard that Brady was dead,
They went downtown and they put on red,
A'marchin' down Main Street singin' this song:
'Brady's struttin' in Hell with his Stetson on.'
"Brady went to Hell, lookin' mighty curious.
Devil says, "Where ya from?" "East St. Louis."
"Take off your coat and step right this way,
'Cause I been expectin' you every day.'"
There are lots of other verses. I learned the song from Carl Sandburg's American Songbag. The song is based on an actual murder that occurred around 1880. But I imagine that the situation didn't develop overnight, so 1870 is a distinct possibility. The post-Civil War turmoil led to law enforcement problems in a lot of places.
Wow! And here I was just exaggerating!