In the Beginning. Personal Recollections of Software Pioneers, IEEE Computer Society, Los Alamitos, CA., pages 134 – 154. Republished in Glass, R.L., (2020), In the Beginning: Personal Recollections of Software Pioneers 2, published by Developer Books, Hogansville, Chapter 5: LEO the First Business Computer: A personal recollection, Frank Land, pp 249 – 288 and brief biography of Frank Land, pp 611 – 613.