The Colonial Iron Industry: Elkridge Landing and Beyond As part of the Howard County Historical Society lecture series, Lee Preston, Jr., former president of the Upper Patuxent Archaeology Group, will discuss the Dorsey family, Avalon Iron Works and the vital colonial iron industry in Elkridge. Bring your own lunch. Drinks and treats will be provided. Free for HCHS members, $5 for nonmembers. 11:30 a.m.-1 p.m. Howard County Historical Society Museum & Library, 8328 Court Avenue, Ellicott City. [email protected]. hchsmd.org/ events-programs. 410-480-3250.