Michael Augustine Healy (September 22, 1839 – August 30, 1904) was an American captain in the United States Revenue Cutter Service (predecessor of the United States Coast Guard).Following U.S. Secretary of State William H. Seward's Alaska purchase of the vast region in 1867, Healy patrolled the 20,000 miles (32,000 km) of Alaskan coastline for more than 20 years, earning great respect from the natives and seafarers alike.