found: The birds of Norfolk & Lord Howe islands and the Australasian south polar quadrant, 1928:plates (H. Grönvold)
found: Vollmer Nachträge (Grønvold, Henrik, Danish painter and illustrator, b. Præstø, Sept. 6, 1858, d. Bedford, Mar. 23, 1940)
found: Saur allgemeines Künstlerlexikon. Bio-bibliographischer Index(Grønvold, Henrik, painter, illustrator, b. Præstø, Sept. 6, 1858, d. Bedford, Mar. 23, 1940)
found: Jackson, C.E. Dict. of bird artists, 1999(Grönvold, Henrik, naturalist and bird artist, b. Praestö, Sept. 6, 1858, d. Bedford, Mar. 22, 1940)
found: RLIN, 8/12/2004(hdgs.: Grönvold, Henrick, 1858-; Grönvold, Henrik 1858-; Grönvold, H. (Henrik), 1858-1940; Grönvold, H.; Grönvold, Henrik; Grönvold, Henrik, 1858-1940; Gronvold, Henrik, 1858-; usage: H. Grönvold; Henrik Grönvold; H. Gronvold)
