[1] German-born American William Schaus (1821–92) was head of Goupil & Co., New York branch 1847–52, and founder of the International Art Union. He was a major collector of Barbizon painters and supporter of the burgeoning American art scene. He resigned from Goupil in 1852 (replaced by Michael Knoedler) and began the William Schaus Galleries. Early in 1892, he held a major sale of his stock room. He died later that year. The remainder of his estate and personal art collection was auctioned in 1896. His son, William Jnr (1858–1942), was a renowned entomologist and specialist in Lepidoptera.
[2] See M. Knoedler & Co. records, approximately 1848-1971, The Getty Research Institute, Los Angeles, Accession no. 2012.M.54, Series I.A, box 5, Painting stock book 5: 8800-12652, April1899– December 1911, p. 185. This purchase by was reported in the New York Times article ‘Butler Paintings sold for $264,835’, 8 January 1910. Painting and buyer are mentioned.
[3] Reported in the NY Times article, ‘Billings to Sell 31 Great Masters’, 6 December, 1925. Painting is mentioned by name.
[4] Reported in the NY Times, ‘79 Paintings bring $86,665 at auction’, 24 November, 1934, p.13. Painting and buyer are mentioned by name.