OK,, I will say either J Dean or J Larsen, depending on which one you look at !! But here is the thing,, its done on canvasboard !! That is not typically used for professional art !! Its used more by hobbyists and beginners !! Some pro`s do use smaller canvasboards as pleine air studies and then do the actual work in his or her studio on a good grade of stretched canvas !! But you got the style right, and it started to become quite popular about then and lasted several decades !!