Sarah Heath will join Wilton as its social services director on Monday, April 17. She succeeds Cathy Pierce, who retired last year. Heath is presently director of human services for the town of Westport, where she is also municipal agent for people with disabilities and the veterans services contact. Heath went to work for Westport in 2007, serving as a social worker for six years and assistant director of human services for three years. She was named director last July.