Mollie Gillen

Dr. Gillen lived in Dolphin Square in London for many years before returning to Toronto, Ontario, Canada. Dr. Gillen lived in a nursing home in Toronto, Ontario from 2002 until her death on 31 January 2009. She was survived by her daughter Barbara and sister Marjorie. Her husband Orval and son Ian both predeceased her.

In 1995, she received Hon.D. Litt. from her alma mater for her work on the First Fleet and the history of early Australia. She was made a Member of the Order of Australia (AM) in recognition of her contributions "to genealogy and to Australian historical research" in the 1995 Australia Day Honours.

Her research led her to write and publish many books on various topics important to Canada and Australia including: The Masseys: Founding Family (1965), The Prince and His Lady (1970), The Assassination of the Prime Minister (1972), The Wheel of Things: A Biography of L.M. Montgomery (1975), The Search for John Small (1985) and The Founders of Australia: A Biographical Dictionary of the First Fleet (1989).

In 1961, she moved to Toronto and eventually became associate editor and staff writer for the Canadian magazine Chatelaine. Mollie published numerous articles for this women's magazine, concerning social problems in the community.

Mollie's first mystery novel, Star of Death, was published in England in 1960. Also her many short stories were published in various publications including The Sunday Evening Post.

Gillen's writing career started in the 1950s. As a federal government information officer in Ottawa, she edited government journals. She was also active on the executive of the University Women's Club of Ottawa, serving as its first vice-president.

At the age of 10, her parents died within a few months of each other: her father who was a medical doctor died from the epidemic of influenza due to tending many patients after WWI. Mollie grew up under the care of her grandparents. She was educated at Loreto Normanhurst and in 1930 graduated with a bachelor of arts from the University of Sydney. While working in London in the 1930s, she met her future husband, Orval John Gillen, a warrant officer with the Royal Canadian Air Force Headquarters Staff then stationed in England. They were married in London on 25 June 1940 and they moved to Canada in 1941.

Mollie Gillen AM (née Woolnough; 1908–2009) was an Australian historian, researcher, writer and novelist. Her work on the First Fleet, in The Search for John Small, First Fleeter and The Founders of Australia: a Biographical Dictionary of the First Fleet, explored the idea that many of the founding families of Australia were descended from the convict population, rather than those sent to guard them. Gillen's article "Maud Montgomery: The Girl Who Wrote Green Gables" instigated a new era in scholarship on Lucy Maud Montgomery.

Mollie Gillen was born Mollie Woolnough in Sydney, New South Wales in Australia, the daughter of Dr. R. E. Woolnough and Bertha Grace Woolnough (née Youdale) in 1908.