What channel separates the island where Jacob L. Sawelson received his sons medal of honor, from Brooklyn?
William Sawelson: William Sawelson (August 5, 1895 – October 26, 1918) was a sergeant in the U.S. Army during World War I. William Sawelson:  He received the Medal of Honor for valor in combat. William Sawelson:  The medal was posthumously presented to his father Jacob L. Sawelson at Governors Island. Governors Island: Governors Island is a 172 acre island in New York Harbor, approximately 800 yd from the southern tip of Manhattan Island and separated from Brooklyn by Buttermilk Channel, approximately 400 yd .
Buttermilk