In 1931, he founded Transportes Aéreos Centro Americanos (TACA), but was forced out at the end of 1945. He went on to found British West Indian Airways in Trinidad and Tobago in 1940, at the invitation of Lady Young, wife of Trinidad and Tobago's new governor Sir Hubert Winthrop Young.
He was born in Wellington, New Zealand and died in Buenos Aires, Argentina.
- Yerex of TACA: A Kiwi Conquistador (1985, Ampersand, New Zealand) by David Yerex (nephew) ISBN 0-9597624-3-4
- Aviator of Fortune: Lowell Yerex and the Anglo-American Commercial Rivalry 1931-1946 by Eric Benson (2006, Texas A&M University Press) ISBN 1-58544-500-2
- BWIA: The BWIA Story
- "TACA Airlines history from Americas, El Salvador". Airline History. Retrieved 21 August 2022.