It is my observation that a painter always enjoys a conflict between logic and his instincts, and with me instinct always wins - Vaughn Flannaery

He did advertising in the '20's and this shows in his sense of design and composition, was a director of the Maryland Jockey Club and moved to Harford County, MD from NYC in the early '30's.
I haven't been able to find the name of this panting so until I can, it Hotwalking. Could be a horse going to the sale ring, or just back to the barn. I like the color notes made along the bottom.