Drumgoole Plaza, the first of 13 parks or plazas being renovated or built with $25 million of Lower Manhattan Development Corp. money, opened to the public last week. The plaza, adjacent to Pace University and across from City Hall, now has about 20 new trees including goldenrains, honey locusts and hollies, new flowers, benches and paving. It is named for John Christopher Drumgoole (1816-1888), who became a priest in midlife and was known for helping out homeless youth and newsboys who worked in the area, once known as Newspaper Row. The plaza is under the Brooklyn Bridge entrance ramps and several agencies and organizations were involved in the renovation. In the photo at right, Councilmember Alan Gerson, left, Iris Weinshall, commissioner of Transportation, David Caputo, president of Pace, Adrian Benepe, commissioner of Parks, Madelyn Wils, chairperson of Community Board 1, and Stefan Pryor, the L.M.D.C.s chief of staff, unveiled the plaza sign last Wednesday. Daniel Doctoroff, deputy mayor of rebuilding, is standing behind Wils.