Dutch family of painters active during the late 18th and 19th centuries, mainly in The Hague. Jan (1744–1808) was the founder. He and his daughter Maria Margaretha (1780–1862) and his son Georgius (1782–1861) specialized in painting flowers and fruits in the lavish detailed manner of Jan van Huysum. Another of Jan's sons, Pieter Gerardus (1776–1839), specialized in landscapes with cattle. His son and pupil, Pieter Frederik (1802–92), taught Mauve.
Text Source: The Oxford Dictionary of Art and Artists (Oxford University Press)
"Os, van" The Oxford Dictionary of Art and Artists. Ed Ian Chilvers. Oxford University Press 2009 Oxford Reference Online. Oxford University Press.