Seven autograph letters (one accompanied by envelope), signed, by Henry Burgh, and one portrait engraving autographed by Burgh. All letters are written on A.S.P.C.A. stationary and most concern the A.S.P.C.A. or cases of animal cruelty. They are addressed to Orange County, N.Y. justice of the peace John Burt; New York state senator Augustus R. Elwood; the editor of the New York Tribune; actor Lester Wallack; and writer Henry Sedley. Bergh at times expresses dismay and frustration with the progress of his causes, in particular decrying the New York City Board of Aldermen and Assemblyman Denis Burns. Of particular interest are two letters: the first, dated December 11, 1866, protesting the regular feeding of live animals to a snake at Barnums museum; and the second, dated November 7, 1881, requesting that Wallack find a position for ""a beautiful young lady, of my acquaintance, who has already had much experience in playing elsewhere"" at his new theater, which opened in 1882.
Henry Bergh founded the American Society for the Prevention of Cruelty to Animals and helped form both the New York Society for the Prevention of Cruelty to Children and the Massachusetts Society for the Prevention of Cruelty to Children. He was the son of successful shipbuilder Christian Bergh.