Cybersecurity in Altadena, CA

In the mid-1860s, Benjamin Eaton first developed water sources from the Arroyo Seco and Eaton Canyon to irrigate his vineyard near the edge of Eaton Canyon. This made possible the development of Altadena, Pasadena, and South Pasadena. He did the construction for B. D. Wilson and Dr. John Griffin, who jointly owned the Mexican land grant of Rancho San Pascual, about 14,000 acres (57 km²), that was the future sites of these three communities. They hoped to develop and sell this land in a real estate plan called the San Pasqual Plantation. Their efforts failed by 1870, despite Eaton’s irrigation ditch that drew water from the site of present-day Jet Propulsion Laboratory (JPL) in the Arroyo Seco, because the land was relatively inaccessible and few believed crops could thrive that close to the mountains.

Eaton tried to sell the land for the partners, and in late 1873 he helped broker a deal with Daniel Berry, who represented a group of investors from Indiana, to buy 4,000 acres (16 km²) of the rancho. This included the land of present-day Altadena, but they developed a 2,500 acres (10 km²) section further south as Pasadena. In 1881, the land that would later become Altadena was sold to John and Fred Woodbury, brothers who launched the subdivision of Altadena in 1887. The land remained primarily agricultural, though several eastern millionaires built mansions along Mariposa Street, and a small community developed through the 1890s and into the next century.

Woodbury-Story House (1882), the home of Capt. John Woodbury, is extant and occupied.

In 1880, Capt. Frederick Woodbury, and his brother, John Woodbury of Marshalltown, Iowa, purchased 937 acres (3.79 km²) known as the Woodbury Ranch. John Woodbury established the Pasadena Improvement Company in 1887, with a plot plan of residential development referred to as the Woodbury Subdivision. They contacted Byron O. Clark, who established a nursery in the foothills in 1875, and had since moved away. He called his nursery “Altadena Nursery”, a name he coined from the Spanish “alta” meaning “upper”, and “dena” from Pasadena. Woodbury asked if he could use the name “Altadena” for his subdivision and Clark agreed.

Learn more about Altadena.