I called your Dad back right after he phoned me this morning . He had called to tell me that he had sent me an Email. I told him that it was true that I had been a student of James Eakle during the time in question; I'd taken Art History 190B and several other classes that were art related from Mr. Eakle. He was, by far, my favorite instructor!
Eakle resembled Don Knox in appearance but had a large, booming voice that carried long distances. He was a passionate promoter of art, especially painting, and came across as someone who lived and breathed everything and anything art-related. In addition to the artists you mentioned in your blog I remember he also discussed Mark Tobey, an artist from the Seattle area; he seemed to find Tobey's work of special worth.
Mr. Eakle lived in Point Richmond during the same period of time that Arlys and I lived there; he lived in a house that overlooked the Bay, towards Marin County. We would pass each other on occasion and wave - I always regret not stopping to talk to him but I felt guilty that I had not pursued painting as he suggested I should and couldn't bring myself to talk to him about it.
So. The notebook. You mentioned you thought the handwriting looked feminine. I take no offense because it should look as it does. You see, your Grandmother, Iris, took a few classes during the same time period. I had no car so I rode the bus out there to the "old" campus, Mom did like likewise but at a different time of the day because she wasn't taking very many classes; we'd pass in the hallways now and then between classes and say Hi.
It's your grandmother's notebook. Mystery solved. Good detective work, Brenda. And I enjoyed reading your essay.