The Danish surname Boer has the same entomology as the German / Jewish name Bauer. It was essentially a status surname, meaning either "peasant" or "neighbor." The name came originally from the Middle High German word "bur," referring to a small dwelling or building, which it turn evolved from the Old High German word "buan," meaning "to cultivate."
^ Filby, P. William, Meyer, Mary K., Passenger and immigration lists index : a guide to published arrival records of about 500,000 passengers who came to the United States and Canada in the seventeenth, eighteenth, and nineteenth centuries. 1982-1985 Cumulated Supplements in Four Volumes Detroit, Mich. : Gale Research Co., 1985, Print (ISBN 0-8103-1795-8)