Walter Olsewski '68 served as the head of the swimming and diving program for 20 seasons, and was instrumental in resurrecting men's team at Manhattan. During his 20 years, he guided the women's team to a 155-124 record (.556), and led both squads to a combined 200 victories. Olsewski also served 11 seasons from 2000-11 as the Jaspers' golf coach. A standout swimmer in his own right at Manhattan, following graduation he worked for over 30 years in the Central Islip Public School District.