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Ray Schulenberg with Cathy Ciolac studying specimens in Herbarium
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Ray Schulenberg in Herbarium with Cathy Ciolac studying specimen
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Ray Schulenberg with students at retirement reception
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Jerry Wilhelm signing book at Swink-Wilhelm book signing at Thornhill - Ray Schulenberg, John Taggert, and Jane Balaban in lineSeptember 9 1994
Nachel, Jim
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Ray Schulenberg lecturing for a Lunching and Learning class
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Ray Schulenberg lecturing for a Lunching and Learning class
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Ray Schulenberg speaking to group of women in the prairie1964 – 1965
Purrington, Frank L.
Article
The Arboretum Landscape – A Sesquicentennial PerspectiveDecember 21 1968 – March 20 1969
Schulenberg, Ray
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Ray Schulenberg lecturing for a Lunching and Learning class
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Ray Schulenberg in prairie with group
Article
Introduced Woody Plants in the Flora of the Chicago RegionSeptember 21 – December 20 1969
Swink, Floyd, Schulenberg, Ray
Article
Woody Plant Collections at the Morton Arboretum: A Historical PerspectiveDecember 21 1980 – March 20 1981
Schulenberg, Ray
Photographic image
Ray Schulenberg lecturing for a Lunching and Learning class
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Ray Schulenberg lecturing for a Lunching and Learning class
Article
Woody Plant Collections at the Morton Arboretum: Content and ArrangementDecember 21 1981 – March 20 1982
Schulenberg, Ray