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May T. Watts, Mary Moulton, Helen Turner, Alice Goodrich, and Edna Jones with a class in the Redwood Buildingcirca 1948 – 1959
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Arboretum Landscape Teaching Aid Series: An Apple Tree was Planted on a Farm1940 – 1960
Watts, May Theilgaard
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Arboretum Landscape Teaching Aid Series: Early Settlers Brought Roses1940 – 1960
Watts, May Theilgaard
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Arboretum Landscape Teaching Aid Series: Confirmation from Old Maps1940 – 1960
Watts, May Theilgaard
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Arboretum Landscape Teaching Aid Series: Indian Trails and Villages1940 – 1960
Watts, May Theilgaard
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Arboretum Landscape Teaching Aid Series: Know, Know, Know Your Oaks, This Is How They Grow1940 – 1960
Watts, May Theilgaard