This Article describes how Marbury, the youngest son of an impoverished remnant of a well-known family, elbowed his way to wealth and influence among the Maryland gentry. Further, this Article illuminates Marbury's choice between the two wings of the Federalist party in Maryland - the Hamiltonian elite and the Adams' loyalists - and how Marbury's partisan service brought him to a position earning Thomas Jefferson's disdain and rebuff. In the end, Marbury's appointment and rejection derived from the very different characters of John Adams and Thomas Jefferson.