The mission "The Iniquities of History" is one of the side quests in RDR 2. Arthur's task is to help one of the residents of Rhodes return a few things from an abandoned farm.
The character of the quest is Jeremiah Compson. At the beginning of the mission, Morgan promises to pick up the necessary items from the family home.
You will need to find three things. The first of them is an antique pocket watch. They are lying on the green chimney.
After Arthur takes the watch, he will begin to study the photo standing on a large pipe. At this time, two bandits will enter the house, which will need to be shot. Arthur will find Compson's gun in one of them. This is the second thing.
The third item Morgan finds in the basement. The entrance to it through a hatch, which is located near the same large pipe. Arthur's Task is to use any means at hand to break the lock. He will find a book in the basement. It can be studied and found in it, for example, a cigarette card.
Once all three items were in Morgan's possession, he would have to return to the camp and give them to Compson. This completes the mission.