He was a great-nephew of Alexandre Mouton (1804-1885) a former Governor of Louisiana and United States Senator.
He was also related to Charles Homer Mouton who was Lieutenant Governor (LTG) of Louisiana between 1856 and 1859.
Another family relationship with Marc M. Mouton, LTG of Louisiana between 1940 and 1944 is possible but cannot be verified in the sources.
In 1903 he was appointed by the New York Life Insurance Co. to the position of the superintendent of agents at Paris in France.
He was elected to the city council of Lafayette and since 1912 he was a member of the Louisiana State Senate.