sentences:  During these years, the Erie Sailors played in the Middle Atlantic League from 1938–1939, 1941–1942, and 1946–1951; the PONY League from 1944–1945 and 1954–1956; and the PONY's successor New York – Penn League from 1957–1963.Several times during this period, the team was also called the Erie Senators, after its major league affiliate, the Washington Senators.The Sailors won league championship in 1957.