John Lewis Brown

Possibly, Goupil & Cie, New York, no. 10733 (acquired as half-share with Bague & Cie, December 1875 until 1879, as Un Cuirassier de Marie-Thérèse) 
Acquired through the Prendergast Bequest, 1891

Descriptive Catalogue of the Art Gallery of the James Prendergast Library Association, Jamestown, 1906, no. 13 
Katherine E. Manthorne, The Mirror Up to Nature: A Catalogue of 19^th and 20^th Century Paintings in the Collection of The James Prendergast Library Association, Jamestown, New York, 1982, p. 7, illustrated 

Oil on stable panel. The surface is visibly dirty and there is discolored varnish across the picture surface. There is an upside down L-shaped black accretion extending from the horizon line at left; a scratch with minor associated loss on the proper right back leg of the horse; a diagonal varnish scuff extending from the upper left edge to the mane of the horse; and frame abrasion scattered at the extreme edges. Under UV: the surface is covered by heavy green fluorescing varnish and there are no apparent issues.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.