The Rooney family is an Irish-American family, which after immigrating from Ireland in the 1840s, established its American roots in Pittsburgh, Pennsylvania in the 1880s, and is known for its connections to the sports, acting, and political fields. They are primarily known for having been the majority owners and operators of the Pittsburgh Steelers of the National Football League (NFL) since the formation of the franchise in 1933. The family members, who have had the most influence in the Steelers organization are: