Total aside. Human interest.
The Six Sigma Handbook (Quality) was edited by Forest W. Breyfogle III. Why has he been interested in Quality?
https://en.wikipedia.org/wiki/1956_G...-air_collision
The TWA Flight Engineer in the crash was his father, Forest W. Breyfogle Jr.
What started as the tragic death of his father, grew into a passion of preventing airplane accidents, and quality in general.
“Brey”, his father and the entire family, were active members of the church I grew up in.