New as of June 5, 2018:
You can download sample pages of the catalog of the archive.
Those interested in feminist cartoonists/comic creators/graphic novelists might want to look at Barbara Slate, who is organizing and cataloging her archive and posting what she finds in the attic daily in this album. Her feminist character Ms. Liz was a regular animated feature on the TODAY Show in 1982, was on millions of greeting cards, a strip in Cosmopolitan and more. She created, wrote, and drew the groundbreaking Angel Love for DC Comics, about sex, drugs, and other tough issues (1986-87, not approved by the Comics Code Authority). She then did the 3-part graphic novel Yuppies from Hell for Marvel. In the 90s she created, wrote & drew Sweet XVI comics for Marvel, wrote their Disney's Pocahontas, 13 Beauty and the Beast comics, and 65 Barbie comics (Barbie could do anything, praised by Ms. Magazine), among many others. Barbara wrote more than a hundred Betty, Veronica and Archie stories. In the current decade she did the graphic novel Getting Married and Other Mistakes, and is now finishing up a second edition of her 2010 textbook, You Can Do a Graphic Novel, while working on a graphic novel autobiography. The archive has massive quantities of original art, comics, products, scripts, layouts, edits, correspondence and press.
Full disclosure: I live with her and am helping her organize and catalog the archive.