Drawing
Spring Wild Flowers of the Forest Floor At The Morton Arboretum: A Key To Identification, page 61944
Watts, May Theilgaard
Drawing
Forest Nature Trail Guide, page 11 illustrations and layout with preliminary sketches1946
Watts, May Theilgaard
Drawing
Evergreen Nature Trail Guide, page 11 illustrations and layout with preliminary sketches1940s
Watts, May Theilgaard
Drawing
Arboretum Landscape Teaching Aid Series: Affirmation from Memories of Old Settlers, Part I1940 – 1960
Watts, May Theilgaard
Drawing
Forest Nature Trail Guide, page 12 illustrations and layout with preliminary sketches1946
Watts, May Theilgaard
Drawing
Evergreen Nature Trail Guide, page 12 illustrations and layout with preliminary sketches1940s
Watts, May Theilgaard
Drawing
Evergreen Nature Trail Guide, page 13 illustrations and layout with preliminary sketches1940s
Watts, May Theilgaard
Drawing
Arboretum Landscape Teaching Aid Series: Affirmation from Memories of Old Settlers, Part II1940 – 1960
Watts, May Theilgaard
Drawing
Evergreen Nature Trail Guide, page 14 illustrations and layout with preliminary sketches1940s
Watts, May Theilgaard
Drawing
Forest Nature Trail Guide, page 15 illustrations and layout with preliminary sketches1946
Watts, May Theilgaard