'Today was greeted by the sad news of the passing of Danny Kirwan in London, England.
Fleetwood said it was Kiran's "love for the blues" that led him to the band. His studio band once included Kirby Gregory from the bogus version of Fleetwood Mac, who briefly formed amid a battle over the rights to the band name in 1974.
Kirwan's work was on show from "Then Play On" 1969 to "Blues Jam at Chess" 1969 "Kiln House" 1970 "Future Games" 1971 and then "Bare Trees" 1972. Kirwan was an influence on the group's earlier blues days with co-founding guitarists Peter Green and Jeremy Spencer and contributed to their first United Kingdom #1 hit "Albatross".
Mick Fleetwood, one of the band's founders, said Kirwan was "a huge force in our early years". "Thank you, Danny. You will forever be missed". Unfortunately, Kirwan's struggles with alcoholism impacted his relationship with the band, and he was let go after the release of Bare Trees, just three years before Lindsey Buckingham and Stevie Nicks joined the group.
His cause of death has not been revealed.
Kirwan made his recording debut on the band's #1 United Kingdom instrumental hit, "Albatross", released in November 1968. His recording career ended at that point; his alcoholism and severe mental health problems left him homeless for several years.
'I've been through a bit of a rough patch but I'm not too bad, ' he told The Independent in 1993. Kirwan was inducted into the Rock & Roll Hall of fame with his bandmates in 1998.