June 30, 1956: Trans World Airlines / United Air Lines, Lockheed L-1049 (N6902C) / Douglas DC-7 (N6324C) Mid-Air Collision, Grand Canyon, AZ - LOSTFLIGHTS
Remembering victims of 1950s Grand Canyon plane crash, including 2 from Camarillo
7 ways air travel changed after air disasters
Crash of a Martin 404 in Pittsburgh: 22 killed
1960 New York mid-air collision - Wikipedia
Crash of a Martin 404 in Pittsburgh: 22 killed
Grand Canyon Collision
1960 New York mid-air collision - Wikiwand
1956 Grand Canyon mid-air collision - Wikipedia