Doug Ingle, frontman of rock band Iron Butterfly, dies aged 78 - The Guardian
- Doug Ingle, frontman of rock band Iron Butterfly, dies aged 78 The Guardian
- Doug Ingle: Iron Butterfly lead vocalist who sang rock classic In-A-Gadda-Da-Vida dies Sky News
- Doug Ingle dead at 78: Iron Butterfly founding member and lead singer passed 'peacefully' and 'in the presence Daily Mail
- Iron Butterfly's Doug Ingle has died aged 78 NME
- Iron Butterfly founder Doug Ingle dead at 78 Louder