Murray Stephens and Tim Pierce began training  swimmers in the summer of 1967 and the North Baltimore Aquatic Club was incorporated in the spring of 1968 as an Amateur Athletic Union member club, headquartered at Loyola High School where both men taught.  NBAC sent Bob Gavin to Olympic Trials in Los Angeles in 1968 in 200 Butterfly. Murray became the head coach in 1971.  Coach Carter Warfield developed scores of swimmers as precise in their technique as they were fast.  Also in 1972, two girls swam in the Olympic Trials in Chicago.  In 1976, NBAC continued its fast swimming when Janet  Freudenstein placed 8th in 100 Backstroke at Olympic Trials in Long Beach, California. At the Olympic Trials in 1980 in Irvine, Theresa Andrews placed fifth in the 100 Backstroke and Polly Winde placed fifth in 200 Breaststroke.  In November, John Cadigan began assisting Murray both at Loyola High School and with the NBAC Senior Group.  The next summer, NBAC had its first National Champion when Theresa Andrews won 100 Backstroke at U.S.Nationals.