KATHERINE PARKER, fellowship of the Royal Geographical Society, is the Research Officer at Barry Lawrence Ruderman Antique Maps Inc. She received her PhD in History from the University of Pittsburgh in 2016. She has published in an array of scholarly journals and edited collections. BARRY LAWRENCE RUDERMAN ANTIQUE MAPS INC. is located in La Jolla, California, and is a leading dealer of fine antique maps and atlases. It was established in 1992 and since then, it has earned a reputation for handling top-quality authentic antique maps