William Strong, Spofford v. Kirk — Opinion of the Court
“ The United States must have treated as a nullity any rights to the claim asserted by others. It is hard to see how a transfer of a debt can be of no force as between the transferee and the debtor, and yet effective as between the creditor and his assignee to transmit an ownership of the debt, or create a lien upon it. Yet if that might be,-and we do not propose now to affirm or deny it, the question remains, whether the act of Congress was not intended to render all claims against the government inalienable alike in law and in equity, for every purpose, and between all parties. ”
