|Hey there, cowboy. This article looks a little bit small.|
I reckon you could impress me by contributing to it. Don't be shy now.
Nothing is known about Percy's life prior to 1899, other than that he is the foreman at the Central Union Railroad construction site.
Events of Red Dead Redemption 2
In 1899, he tasks Arthur Morgan with investigating workers as he suspects that one of them has been stealing wages from the site, after the thief is later revealed to be the junior foreman, Percy will then reward Arthur with 50% of the stolen wages (or 75% depending on the fate of the junior foreman).
Later, he will again send Arthur on another task, as a group of thugs working for Leviticus Cornwall have purchased a parcel of land, therefore halting construction of the railroad. Arthur is sent to dispatch of the thugs and to retrieve the deed for the land, once this task is complete, construction will resume.