In his early days in Hertfordshire he became friends with many art students, including Dave Richards, Julian McAllister and Donovan.
In late 1964 Donovan had been signed up to a record label and asked Mills to accompany him on his first tour with his other friends Mac MacLeod and John Lock.
In 1979 he wrote a children's book entitled Sandy Lea for which Rita Schmeiser provided the illustrations.
[6] By 1997 Mills turned his attention back to sculpture, and became a well-respected artist and writer in Greece.
[7][8][9] In 2006 Mills married his partner Pannee in Thailand, and finished building a school of sculpture and an artist's retreat.
He was working on his autobiography and a few of his early adventures are to be found in Donovan's book The Hurdy Gurdy Man.