Your sources were utterly wrong. Justice Gray, other jJustices, and the Indiana justices deserved to be impeached for their inexcusable false statements while knowing full well they were denying the plaintiffs any opportunity to impeach the false and unsupported statements of the courts with vrfiable case law and historical precedents to the contrary.
“The common law of England is not the common law of these states. (Debate in Virginia Ratifying Convention, 19 June 1788)”
“It is clear there can be no common law of the United States. The Federal government is composed of twenty-four sovereign and independent states, each of which may have its local usages, customs and common law. There is no principle which pervades the Union and has the authority of law, that is not embodied in the constitution or laws of the Union. The common law could be made a part of our Federal system only by legislative adoption.” (U.S. Supreme Court, Wheaton vs Peters)
You are relying upon blatantly false dicta that is easily impeached and refuted.