Hilda van Stockum

Hilda Gerarda van Stockum (9 February 1908 – 1 November 2006) was a Dutch-born children's writer and artist. She received a Newbery Honor.
Biography.
She was born in Rotterdam in the Netherlands. Her father was an officer in the Dutch Royal Navy. She grew up in the Netherlands and Ireland. Her books are characterized by their vivid and realistic depictions of family life, some of it (e.g. "The Mitchells") being autobiographical.
"The Winged Watchman" is her best-known book. It is a true story of how traditional windmills were used by the Dutch resistance for signaling under the noses of German occupiers. Two Dutch boys play a heroic role, carrying a warning message to the first windmill. The signal is then sent rapidly across the countryside by altering the position of the arms of the windmills. The book is based on letters Hilda received from relatives in the Netherlands, and has been praised for conveying an accurate sense of life under Nazi occupation.
The emphasis is on realism in her painting and drawing as well, which consist mainly of still lifes, landscapes and portraits. She has achieved a degree of fame in this regard in Ireland, and was elected to the Honorary Council of the Royal Hibernian Academy in 1983.
Personal life.
Van Stockum was a granddaughter of Charles Boissevain, editor of the "Algemeen Handelsblad", an influential Dutch newspaper. She married Ervin Ross Marlin, a friend of her brother, mathematician Willem Jacob van Stockum in 1932. She had six children, who feature in many of her books. One of her children is the artist Brigid Marlin.
By 1935, van Stockum was living with her family in Washington, D.C. and she became an American citizen in 1936. 
Although from a predominantly Protestant background, Van Stockum was a staunch Catholic since her conversion in 1939.
In 1974, the Marlins moved to Berkhamsted, England. Van Stockum died there on 1 November 2006.