Calvin Vaudrey was born in 1924 on a ranch north of Glendo, Wyoming. He graduated from Glendo public schools and entered the University of Wyoming in January 1946, after discharge from the Army Air Corps. He graduated from the UW in May 1948 with a B.S. in Civil Engineering and continued his formal education at UW by earning his M.S. in 1950 and Ph.D. in 1954. Vaudrey joined the civil engineering staff at South Dakota State College in 1948 and continued teaching civil engineering and related subjects until spring 1957. He became a registered professional engineer in South Dakota in 1952 and followed with registration in Wyoming, Colorado, Minnesota, and Arizona. He established a private engineering office in Brookings, South Dakota in 1953 in partnership with J.T. Banner and Associates, a multi-discipline architectural engineering firm, and continued with the Banner organization until retirement in 1989. He became President of Banner and Associates in 1969 and of Horizons, Inc., a Banner subsidiary, in 1971. During his active years, Vaudrey served on board of directors and advisory boards for various corporations, foundations, government agencies, and other organizations. He enjoyed 54 years of married life until the death of his wife, Denice, in 1997. He has one son, Kennon, two grandsons, and two great grandchildren. His son Kennon also received his B.S. in Civil Engineering from UW, followed by a Ph.D. in engineering from Stanford University.