found: Münchener Bilderbogen 97-192, between 1852 and 1856no. 150 "Was die Kinder gern essen und die Thiere gern fressen" (name not given, attributed to L. Voltz)
found: Eichler, Ulrike, "Münchener Bilderbogen", Oberbayerisches Archiv, 1974, vol. 19, p. 92(Voltz, Ludwig Gustav, 1825-1911); p. 95, no. 150 (L. Voltz)
found: LC database, Jan. 27, 2011(hdg.: Voltz, Ludwig Gustav, 1825-1911 [from old catalog])
found: World biog. information system, Jan. 27, 2011(Voltz, Ludwig Gustav; Other Name(s): Volz, Louis; Gender: male; Year of birth: 1825; Year of death: 1911; Occupation classification: Painters, Draughtsmen, Graphic Artists)
found: Rudolfinum, 2005, pages 255-257, consulted online January 17, 2020:page 255 (in discussion of Adolf Obermüllner's cycle of paintings to illustrate the Österreichisch-Ungarische Nordpolexpedition of 1872-1874: the paintings are based on drawings by expedition leader Julius von Payer; the human figures represented are by Alexander Ritter von Bensa and the animal staffage by Ludwig Gustav Volz) - https://www.zobodat.at/pdf/Rudolfinum_2005_0247-0263.pdf
found: Allgemeines Künstlerlexikon Online, January 17, 2020(Voltz, Ludwig Gustav; artist ID: _00159666; other names: Voltz, Ludwig; Voltz, Ludwig Gustav; Voltz, Louis Gustav; occupation: painter of hunting scenes; painter; animal painter; landscape painter; gender: male; date of birth: 1825.04.28; place of birth: Augsburg; date of death: 1911.12.26; place of death: Munich)
found: Thieme-Becker, v. 34 (1940), via Allgemeines Künstlerlexikon Online, January 17, 2020 (Voltz, Ludwig (Louis) Gustav, animal and landscape painter, born 28.4.1825, Augsburg, died 26.12.1911 Munich; frequent contributor to Münch[e]ner Bilderbogen)
found: "Voltz, Ludwig or Louis," in Bénézit dictionary of artists, published online 31 October 2011; consulted online via Grove Art online, January 17, 2020(Voltz, Ludwig or Louis; German, 19th century, male; born 28 April 1825, in Augsburg; died 26 December 1911, in Munich; draughtsman; genre scenes, landscapes, landscapes with figures, animals; among his key works are illustrations of Grimm's fairy tales)
found: German Wikipedia, January 17, 2020(Ludwig Gustav Voltz; German animal and landscape painter; also draughtsman and illustrator; studied at Königliche Akademie der Künste, Munich; exhibited in Vienna and Munich; member of Münchner Kunstverein; contributed illustrations to Münchener Bilderbogen)