@farmerman,
Whether or not any of us find the source, this art question is going to propel me to go back and look at online photos of those painters I have long liked/loved but not reviewed any time lately. Some I have books on, yep, Sloan is on the shelf, Bellows, where's my Diebenkorn and the David Park? Oh, wait, I found them. But, looking at the shelving is useful, I dug out my Russell Chatham book (a hundred paintings), I'd forgotten about him - and his colors have some similarity.
Much more enjoyable than arguing politics...
Hope Bobsal stops by.