[1] He entered private practice in Pointe Coupee Parish, Louisiana from 1873 to 1880.

[1] Parlange was nominated by President Grover Cleveland on December 11, 1893, to a seat on the United States District Court for the Eastern District of Louisiana vacated by Judge Edward Coke Billings.

[1] He was confirmed by the United States Senate on January 15, 1894, and received his commission the same day.

[citation needed] During his childhood he resided at Parlange Plantation near New Roads, Louisiana.

[citation needed] He was the uncle of Virginie Amélie Avegno Gautreau, better known as Madame X of John Singer Sargent's celebrated portrait.