The O'Halloran family is the newest family in the Iron Barons. However, they are the most involved in the day to day operations. It is also a bit of a misnomer. The O'Hallorans are not a family per se, it is the collective of all the workers. The original O'Hallorans were some of the founding families of the Iron Barons, but they are more like a clan or criminal gang that you marry into rather than a union. The majority of the company workers are not O'Hallorans, but if you want to move up, you need to become an O'Halloran. You can't divorce from the O'Hallorans...