Monroe can sometimes be found in the Foreman's Office at MacFarlane's Ranch. However, if Marston has a bounty, Monroe will track him to multiple locations around West Elizabeth and the region of Hennigan's Stead in New Austin.
|Hey there, cowboy. It looks like this little ol' article is a bit puny.|
I reckon you could impress me by adding to it. Don't be shy now.
If you're logged in, it'll help you earn them fancy achievements, too.