William L. CLAY et al., Plaintiffs-Appellants, v. DOMINION OF CANADA, Defendant; William L. CLAY, Jr., Plaintiff-Appellant, v. DOMINION OF CANADA, Defendant; Angelo R. SANTORA, Plaintiff-Appellant, v. HER MAJESTY, ELIZABETH, as of right QUEEN OF CANADA, and Canada, Defendants; Arthur SHAUGHNESSY and Anne Shaughnessy, Plaintiffis-Appellants, v. HER MAJESTY, ELIZABETH, QUEEN OF CANADA, and Canada, Defendants