According to Variety, no details surrounding his death are immediately available. His death was reported by the band's co-founder, Mick Fleetwood, on his Facebook page. He wrote: "Danny was a huge force in our early years". His love for the Blues led him to being asked to join Fleetwood Mac in 1968, where he made his musical home for many years. Kirwan continued, stating that his legacy would live on in Fleetwood Mac's music.
Thank you, Danny Kirwan. You will forever be missed!,' he added.
A 2015 piece on Kirwan from the Observer calls him "one of the great lost figures in rock history", citing him as integral to "the transition from the Blues Mac of the 1960s to the mega-selling FM pop machine of the mid-1970s".
Former Fleetwood Mac guitarist, Danny Kirwan, sadly passed away of an unknown cause on June 9 at the age of 68.
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He held his own opposite Green and Spencer on the subsequent singles "Oh Well", "Rattlesnake Shake" and "The Green Manalishi", and his playing powered the classic 1969 set "Then Play On".
Fleetwood Mac pictured in 1969.
At the moment, it isn't exactly clear how he died, but the band's founding member, Mick Fleetwood, acknowledged in a statement on Facebook on Friday evening that Danny had died. The collection was highlighted by Kirwan's rolling composition "Station Man".
A talented singer and songwriter, Danny was recruited into the band by Mick Fleetwood as a teenager. Kirwan went on to make three albums in his own right for DJM Records, but none met with any substantial sales success. During the decades that followed, he was "reportedly marred by bouts of mental health issues and homelessness". Moreover, when the Rock and Roll Hall Of Fame inducted the band into the organization in 1998, Kirwan didn't even attend the ceremony.