A memorial service is planned for this weekend for a Danbury resident who worked at the Harambee Youth Center.  The service honoring William Curtis will take place on Saturday at the Center on West Street at 4pm.  Curtis died on March 16th at the age of 89. The center is now housed under the Connecticut Institute for Communities and bears his name.  Curtis started as assistant director in 1967, became director four years later, and held that role until his retirement in 2016.