Caroline Knickerbocker of Chevy Chase added boxwood clippings to her holiday wreath during a workshop Saturday at Tudor Place Historic House and Garden in Georgetown. By ELIZABETH WIENER See Ethics/Page 30 By KATIE PEARCE By BRADY HOLT See Alley/Page 18 By BETH COPE Police Report/7 Real Estate/17 School Dispatches/11 Service Directory/25 Sports/9 Theater/23 Louise Rosskam took a shot of Shulman’s Market in the 1940s. A five-story residential building will join the revamped grocery.