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"Robert Trimble (1776-1828)". History of the Sixth Circuit. United States Court of Appeals for the Sixth Circuit. مؤرشف من الأصل في 2010-12-27. اطلع عليه بتاريخ 2011-06-09.
"Robert Trimble (1776-1828)". History of the Sixth Circuit. United States Court of Appeals for the Sixth Circuit. مؤرشف من الأصل في 2010-12-27. اطلع عليه بتاريخ 2011-06-09.