Doug Ingle, American singer-songwriter and keyboard player (died 2024)

Douglas Lloyd Ingle was an American musician, best known as the founder, organist, primary composer and lead vocalist for the band Iron Butterfly. He wrote the band's hit song "In-A-Gadda-Da-Vida", which was first released in 1968, and was the last surviving member of the band’s 1967–1969 lineup.

September 9 is the 252nd day of the year in the Gregorian calendar; 113 days remain until the end of the year.