
She has continued working with Earl's commercial themes. ĭiana Nightingale is the widow of Earl Nightingale. After his father left, his mother relocated the family to a tent in nearby Tent City in Long Beach on the waterfront behind the Mariner Apartments. His father, Earl Nightingale IV, abandoned his mother in 1933. Nightingale was born in Los Angeles in March 1921. Nightingale was the author of The Strangest Secret, which economist Terry Savage has termed "…one of the great motivational books of all time." Biography He was the voice during the early 1950s of Sky King, the hero of a radio adventure series, and was a WGN radio program host from 1950 to 1956.

Earl Nightingale V (Ma– March 25, 1989) was an American radio speaker and author, dealing mostly with the subjects of human character development, motivation, and meaningful existence.
