Betz was born in 1920 in Hammond, Indiana. She majored in journalism at Sarah Lawrence College (Class of 1941). From February to May 1951, she briefly hosted a weekly teen-interest talk show, "Going Places with Betty Betz", on ABC.
In 1956, she married Canadian oil magnate and champion race horse owner Frank McMahon and moved to Calgary, Alberta. They had two daughters, Francine de la Moussaye and Bettina McMahon.
Betz and her husband retired to Bermuda where he passed away in 1986. She continued to paint until she succumbed to Alzheimer's disease. She passed away on April 17, 2010.
- "'Manners for Moppets' author, socialite Betty McMahon dies in Bermuda", Palm Beach Daily News, 18 April 2010.
- ↑ "Betty Betz," Open Library. Last updated" 13 May 2012, Accessed: 19 May 2015
- ↑ Brooks, Tim and Earle F. Marsh. "Going Places with Betty Betz", The Complete Directory to Prime Time Network and Cable TV Shows, 1946-Present. New York: Ballantine Books, 2007. pg. 544
- ↑ Cook, Joan. "Frank McMahon, an Industrialist", New York Times. Published: 22 May 1986. Accessed: 19 May 2015.
View Betty Betz's memorial at Find-A-Grave.