Nuptial vows were exchanged by Catherine F. Friedman and Peter A. Zaepfel at 2 p.m. Saturday in Nativity of the Blessed Virgin Mary Catholic Church, Clarence. Performing the ceremony were the Rev. Daniel A. Young of St. James Major Church, Westfield, and Deacon Gary C. Terrana of Sacred Heart Church, Niagara Falls. The bride is the daughter of Mr. and Mrs. Thomas F. Friedman Jr. of East Amherst and the bridegroom is the son of Mr. and Mrs. John A. Zaepfel of Williamsville. A teacher in St. Dominic Savio School, Niagara Falls, the bride is a graduate of Niagara University and is a graduate student in Buffalo State College. The bridegroom, a Niagara County Community College graduate, is a service technician with J&S Mechanical. After taking a Caribbean cruise, they will be at home in Bowmansvile.