Biller, Theodore Donald

Theodore Donald Biller, born in Shenandoah County, Virginia, in 1875, was a highly capable industrial leader who left a significant mark on the early California oil industry. Reared on a farm until age sixteen, he spent his youth gaining diverse technical experience by working in sawmills, operating stationary engines, and serving as a brakeman and fireman for several railroad companies across Illinois and the East. In 1906, he migrated west to California, eventually entering the Coalinga oil fields in 1907 as a pumper for the Ward and Seneca oil companies. Following a brief period working as a tool dresser in Mexico, he returned to Coalinga and earned a rapid promotion to superintendent of both oil corporations by February 1913.

As a progressive superintendent and stockholder, Biller drove technological advancement in the oil fields by equipping wells with twenty-five horsepower gas engines powered entirely by natural gas. Beyond his industrial achievements, he was deeply committed to his community, actively supporting local Red Cross initiatives and the Coalinga District War Fund Association during wartime efforts. He was also an involved member of the Presbyterian Church and several fraternal organizations, including the Knights of Pythias. Married to fellow Virginia native Margaret G. Swisher in 1911, Biller integrated his deep technical expertise with dedicated civic participation to become an essential figure in California’s industrial development.