2 p.m. on the museum’s 2nd floor (entry via staircase; no elevator), Zwaanendael Museum, 102 Kings Highway, Lewes. Presentation by Bill Manthorpe, retired U.S. Navy captain and author. Part one of the four-part lecture series, “Delaware’s Maritime Heritage.” Museum open 10 a.m.–4:30 p.m. Free admission but, due to space restrictions, reservations for the lecture are required by calling 302-645-1148 no later than Sept.27, 2019.