The International Insurance Society (IIS) has selected  J. Barry Griswell, retired chairman, president and CEO of Principal Financial Group Inc., as one of five nominees for its 2013 Insurance Hall of Fame Award. The award honors insurance leaders who have made a lasting contribution to the insurance industry and who are recognized by their peers as successful leaders, innovators and visionaries. Nominees for the award are selected by the IIS Honors Committee, a body of senior insurance executives and academics. The winner is determined by a vote of the society's membership and will be announced in January.