I don't know about a picture of Plessy, but the mandate of the Supreme
Court to the Louisiana Supreme Court to deny Plessy's request to
overturn the law can be found (along with background info and teaching
strategies) in the Archives Teaching with Documents - Volume 1 pages
69-72. It also cites Records of the Supreme Court, RG 267, Plessy v.
Ferguson, 163 #15248 as the location of the case records.
Is there someone "out there" who can help me with my current dilemma?
I'm looking for an archive of primary source documents having to do with
science. For example, one of the documents I do have describes 19th
century understanding of body systems (digestive processes - "St.
Martin's Stomach") and kids can compare that with what we know about
digestion today. Anyone have any ideas?