The artist of the mill images found in the Karl Wood collection was Captain Irvine Bately.
Thanks to Adrian Allan and @rutlandned who both got in touch to suggest Irvine Bately. He illustrated several books including his brother-in-law R Thurston Hopkins’ book on Sussex, The Kipling County (1924). Captain Bately died in 1962, meaning that the images are still in copyright, so we are unfortunately unable to display these pictures online. However they are still available to view at the Archive. You can find out more about Bately here (scroll down to section ‘the early 1930s’).