Artists, Siblings, VisionariesJudith Mackrell has done an incredible job in bringing to life the stories of these two great artists Anthony D'Offay This is a must read . . . a deeply moving account of a family bursting with talent Anne Sebba In Artists, Siblings, Visionaries, acclaimed biographer Judith Mackrell turns her attention to British brother and sister artists Gwen and Augustus John. In many ways, they were polar opposites. Augustus was the larger of the two; vivid,