1930
Born in Broken Bow, Oklahoma, to Nathaniel M. and Eva Tennessee Mangus.
1951
Serves in the U.S. Air Force as a staff sergeant for four years, of which he spent 39 months in Tokyo, Japan.
1958
Receives a Bachelor of Science in mechanical engineering from Oklahoma State University.
1959
Certified as a registered professional engineer.
1959
Becomes project manager of the installations of the Little Creek Gas Plant and Weeks Island Gas Plant.
1959
The plants’ gas production gathering system pipelines involved 6000 psig gas re-injection system and gas sales pipeline.
1964
Becomes project manager of the Chalky Gas Processing Plant Construction and Installation.
1966
Becomes project manager of the North Terrebonne plant expansion and the Dual 36 Pipeline Loop.
1968
Becomes project manager of the Calumet Gas Processing Plant Construction and Installation.
1969
Becomes offshore engineering section leader of facilities.
1982
Becomes manager of regulatory affairs at Shell Oil for the Offshore.
1985
Becomes senior staff technical safety specialist at Shell Oil Offshore.
1986
Ventures into private practice in technical safety and standards in Lacombe, LA.
1987
Receives citations for service from the American Bureau of Shipping, United States Coast Guard, and the National Security Institute.
2003
Founds TS&S Offshore Crane Services.