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<http://webisa.webdatacommons.org/177543833>	<http://www.w3.org/ns/prov#value>	"Additionally, the collection contains diaries, notebooks, drawings, and other papers kept by his wife, Margaret Barnett Nelson, from circa 1928-1937." .
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<http://webisa.webdatacommons.org/prov/273794146>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/177543833> .