"She made some tough decisions in her life, and I felt for her, but I also felt for those who suffered as a result of some of her decision-making.
"She was austere, ascetic, very hard to get to know and not easy to love. Her grandchildren were terrified of her."
Painstaking research and the book that resulted had gradually revealed her personality, however, including an ability to adapt to changing times and environments. She left the publication Maoriland Worker,' sufficiently left-leaning to be fairly labelled communist, to write for and edit The Northlander, where she was employed by progressive, development-promoting capitalist Allen Bell, very much part of the establishment, whose target was the Far North's conservative descendants of missionaries.
Throughout her life Margaret held true to her passionate belief that women, children and families deserved better than was often their lot in New Zealand, however. Many of the reforms she espoused have become reality over the last two generations, but early last century she was a pacifist radical, who, for example, argued for admission of women to the police and the judiciary, while never losing sight of more mundane issues such as inflation and its effect on mothers and their children.
Her mind, however, remained open, as evidenced by the fact that she was raised as a Quaker, converted to and campaigned for Islam, took a lifelong interest in spiritualism and died a devout Catholic. But for a young Reynold Macpherson she was a distant, glamorous and terrifying grandmother.
Robin Shepherd last week described Dr Macpherson's 14th book as a scholarly, well-researched history as well as a family story, albeit not without controversy.
"I have already heard one family member dispute some of the facts in these pages," he said, although it transpired that the critic had not actually read the book.
Margaret was portrayed as an intriguing character who was always true to her values but had the ability to accept change in attitudes and understandings, while challenging what constituted a mother and housewife.
"She and her family have certainly left their mark of this community," Mr Shepherd added, "and I regret that I never met her, although she lived here in my time."