Thorkell succeeded Leif some time after 1018 AD[?]. Leif, himself, had previously succeeded his father, Eric the Red, or Eirikr Thorvaldsson[?].
... de Veuster (Father Damien) (January 3, 1840 - April 15, 1888) was a Roman Catholic priest who dedicated his life to ministering to the sufferers of Hansen' ...