The site of San Marino was originally occupied by a village of Tongva (Gabrieleño) Indians located approximately where the Huntington School is today. The area was part of the lands of the San Gabriel Mission. (The "Old Mill" was the Mission's grist mill.) Principal portions of San Marino were included in an 1838 Mexican land grant of 128 acres to Victoria Bartolmea Reid, a Gabrieleña Indian. (After her first husband, also a Gabrieleño, died in 1836 of smallpox, she remarried Scotsman Hugo Reid in 1837). She called the property Rancho Huerta de Cuati. After Hugo Reid's death in 1852, Señora Reid sold her rancho in 1854 to Don Benito Wilson, the first Anglo owner of Rancho San Pascual. In 1873, Don Benito conveyed to his son-in-law, James DeBarth Shorb, , including Rancho Huerta de Cuati, which Shorb named "San Marino" after his grandfather's plantation in Maryland, which, in turn, was named after the Republic of San Marino located on the Italian Peninsula in Europe.