Patrick O'Hara was the former apprentice of a woodworker, Lance O'Donnell. After Lance left Boston and settled on the Davenport Homestead, Patrick sold the woodworker's shop and made plans to sell his tools as well. However, he was sought out by Lance, accompanied by Ratonhnhaké:ton, who managed to take the tools from the chest Patrick had hidden them in.
Patrick later collected Lance's plans from the post master in Boston, but Connor was able to retrieve them from Patrick's men.
- Patrick can be assassinated after the completion of Tools of the Trade, although this will have no consequences.