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Daniel M. Williams Biographical Collection of George Grey Barnard, 1863-1969, undated (inclusive)
Held at: Philadelphia Museum of Art Archives [Contact Us]
Held at: Philadelphia Museum of Art Archives [Contact Us]
Held at: Philadelphia Museum of Art Archives [Contact Us]
Held at: University of Pennsylvania: Biddle Law Library [Contact Us]
Held at: University of Pennsylvania: Biddle Law Library [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]