Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. High Quality Content by WIKIPEDIA articles! Although the Milwaukee Road was the first to design such locomotives, naming them Baltics, they didn't get built until after the NYC's Hudsons. The name Baltic for this wheel arrangement was also sometimes used in Europe. Alvin F. Staufer interviewed the Hudson's designer and the NYC's superintendent of motive power, Paul W. Kiefer, in 1961, and asked about the naming of the type. Kiefer's answer is recounted in Staufer's book, Thoroughbreds.