Francis Mellus, born in Salem, Massachusetts, was a younger brother of Henry Mellus.
Francis Mellus bought hides for this company along the coast of California, taking the goods by sailing ship to San Diego, where they were dried, and when a sufficient quantity was collected to fill a trading ship, usually took a couple of years' time, Mellus sent the goods to the East Coast.
After 11 years of that work he came to Los Angeles, where he entered the general merchandise business with David W. Alexander, under the firm name of Alexander & Mellus. Francis married Adelaida Johnson (the daughter of James (Santiago) Johnson and a sister of Henry Mellus’s wife Anita). James J. Mellus was the son of Francis Mellus.
Francis Mellus was elected to the Los Angeles Common Council, the governing body of the city, on 1 May 1854. He was chosen to be council president. Mellus resigned from the council on 8 December 1854.
After the ending his partnership with Alexander in 1863, Francis Mellus was representative for the Wells Fargo Express Company until his death in 1864.
Francis Mellus' widow, Adelaida Mellus, married his partner Alexander in 1864.
- Chronological Record of Los Angeles City Officials,1850-1938, compiled under direction of Municipal Reference Library, City Hall, Los Angeles (March 1938, reprinted 1966). "Prepared ... as a report on Project No. SA 3123-5703-6077-8121-9900 conducted under the auspices of the Works Progress Administration."
- Supervisor Francis Mellus
- Sixty years in Southern California, 1853-1913, containing the reminiscences of Harris Newmark,1916, The Knickerbocker press, New York