In the spring of 1864 Gardiner joined the California Division of Mines and Geology (predecessor of today's California Geological Survey), under the leadership of Josiah Whitney. His friend King was already working with the survey as a field geologist. That summer they participated in the first scientific survey of the Sierra Nevada high country. During the next few years he remained with the survey and traveled through much of California.
In 1867 Gardiner joined the Fortieth Parallel Survey, led by King, and then joined the Hayden Survey in 1872 serving as chief topographer until 1876. Thereafter, Gardiner returned to New York where he was appointed director of the State Survey . From 1880 to 1886 he was also a member of the state board of health and was instrumental in establishing proper sewage systems throughout New York.
Meanwhile, he became involved in the mining industry, writing a report on coal and iron in Colorado (1875); serving as vice-president of the coal companies belonging to the Erie Railroad; and becoming president of the Mexican Coke and Coal Company in 1899.
Gardiner married Josephine Rogers of Oakland, California in 1868. They had a child, Florence (Hall; 1870-1956). She died four years later and in 1881 he married Eliza Greene Doane of Albany, New York. They had five children: Mary Spring (Frazier) (1882-1920), Margaret Doane (Fayerweather)(1883-1958), Doane (1885-1933), Anne Terry (Pier)(1887-?), and Elizabeth Greene Gardiner (1890-1987).[2]
With his father-in-law, Bishop William Croswell Doane, he helped establish the community of Northeast Harbor on Cadillac Island (Mount Desert Island) in Maine. He built a large summer home there in 1883 and named it Ye Haven. It still stands today, known as The Haven. He started a water company, and engineered roads and public utilities. He died there Sept. 10, 1912, aged 70.[3]
The family name had been spelled Gardiner until his father dropped the “i”. James used this form until mid-life when he returned to the earlier spelling.
Notes
^"James Terry Gardiner Dies"(PDF). The New York Times. New York, New York. 11 September 1912. Retrieved 24 January 2016.