Background
Johnston, Clarence Thomas was born on October 23, 1872 in Littleton, Colorado, United States. Son of James Albert and Melissa (Drummond) Johnston.
Johnston, Clarence Thomas was born on October 23, 1872 in Littleton, Colorado, United States. Son of James Albert and Melissa (Drummond) Johnston.
Bachelor of Science, University of Michigan, 1895, Civil Engineer, 1899.
In irrigation work with father, East. South. Nettleton, and Elwood Mead, 1890-1911. In employ state of Wyoming, summers, 1891-1896. Assistant state engineer, 1895-1899.
With United States Geological Survey, 1896-1898, and in irrigation and drainage work, United States Department of Agriculture, 1899-1903 (made trip to Egypt and reported on Egyptian irrigation).
State engineer of Wyoming, 1903-1911. Became professor surveying and geodesy, University of Michigan, 1911, now emeritus.
Fellow of the American Association for the Advancement of Science. Member American Society Civil Engineers (member executive committee division surveying and mapping, 1926-1931.
Married Bessie Vreeland, October 20, 1897. Children: Clarence Nettleton, Franklin Davis.