Your search Union Barge Line Corporation and Aetna Casualty and Surety Company, Appellants, v. Walter M. Allen, Appellee.walter M. Allen, Appellant, v. Union Barge Line Corporation, Aetna Casualty and Surety Company, and the M/v Mariner, Appellees.dravo Corporation, Appellant, v. Union Barge Line Corporation and Aetna Casualty and Surety Company, Appellees did not match any document.