William C. Micou was an influential figure in the legal landscape of the mid-19th century, hailing from New Orleans. He gained prominence in private legal practice and was recognized as a Whig Party member. Notably, Micou was a law partner of Millard Fillmore, who later served as President of the United States. In 1853, Fillmore appointed Micou to the Supreme Court to fill the vacancy left by Justice John McKinley. However, his nomination was not confirmed by the Senate, which had previously stalled on nominations like that of Edward A. Bradford. This situation reflected the political climate of the time, particularly regarding contentious issues such as slavery, which influenced the Senate's reluctance to support a nominee with diminishing political backing. Following the presidential transition to Franklin Pierce, a Democrat, Micou's appointment was ultimately overshadowed as Pierce appointed John A. Campbell, who was quickly confirmed. Micou's brief moment in the spotlight highlights the complexities of political dynamics and judicial appointments during a pivotal era in American history.