This organization has contributed to the following objects in the Encyclopedia.Hancock, John M. to Monroe WertheimerJohn M. Hancock to Monroe Wertheimer, Dec. 28, 1935Wollenberg painting, Gertrude Arnstein of Alaskan wildernessPainting of an Alaskan landscape by Gertrude Arnstein WollenbergWollenberg, Harry in Boston, 1924, shortly before the Beacon Oil mergerWollenberg, Harry in Juneau, Alaska, ca. 1913Harry Wollenberg in Juneau, Alaska, ca. 1913Wollenberg, Harry in Mexico, 1908Harry Wollenberg in Mexico, 1908Wollenberg, Harry, ca. 1950Formal portrait of Harry Wollenberg, ca. 1950
Wollenberg painting, Gertrude Arnstein of Alaskan wildernessPainting of an Alaskan landscape by Gertrude Arnstein Wollenberg