FARRAH MAFFAI Patricia and Dorothy Faith, the sister and mother, respectively, of Pfc. Walter D. “Chipper” Faith, listen as the national anthem is sung at a ceremony dedicating athletic fields in Sayreville in his name Saturday. Faith, who played on the fields as a kid, was 20 when he was killed in Vietnam.FARRAH MAFFAI Patricia and Dorothy Faith, the sister and mother, respectively, of Pfc. Walter D. “Chipper” Faith, listen as the national anthem is sung at a ceremony dedicating athletic fields in Sayreville in his name Saturday. Faith, who played on the fields as a kid, was 20 when he was killed in Vietnam.