The area which is now South San Francisco was part of Rancho Buri Buri, a large Mexican land grant to the Sanchez family dating to 1827. In 1853 Charles Lux and a business partner, Alfred Edmondson, purchased of Rancho Buri Buri. Lux bought out Edmonson's interest in 1856 and founded the town of Baden, now a neighborhood of South San Francisco. In 1855 Lux bought another of Rancho Buri Buri land and became a partner of fellow San Francisco butcher and entrepreneur Henry Miller, forming the firm of Miller & Lux.