During his lifetime BG Windus sold his paintings at Christie's in 1842, 1853, 1859 and 1862 and also at Sotheby's.  The year after his death in 1867  his collection of paintings and drawings, along with household goods including furniture, were  sold at Christie's and his books were sold at Sotheby's.

Catalogue entries

Christie's 1 and 2 June 1842

Drawings and sketches by Sir David Wilkie - for full details click here
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Christie's 20 June 1853

​Five magnificent pictures by JMW Turner RA - for full details click here
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Christie's 26 March 1859

English Paintings and Drawings of the Highest Class - for full details click here
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Christie's 19 July 1862

The most important portion of the Celebrated Collection of English Pictures - for full details click here
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Christie's 14, 15, 17 February 1868

Sale following death of B G Windus in July 1867 - for full details click here

Sotheby 22, 23 February 1839
Sotheby 23 - 26 March 1868:  Catalogue of the very select and valuable Library of the late Benjamin Godfrey Windus, Esq
Unfortunately access to the Sotheby archive is not permitted.