The body of a seventh person has been recovered from the wreckage of a World War II plane that crashed into Clear Lake, and authorities continued to look for a possible eighth victim. Aviation authorities now believe seven people were on the Lockheed P2V Harpoon, which intruded on a seaplane air show last weekend and staged an impromptu aerobatics display before plunging into the lake. Divers were looking for another body because the aircraft could seat eight, according to the Lake County Sheriff's Department. Identifications of the dead will take about two more days, deputies said. Federal investigators have said Doug Lacey, 40, of San Rafael was the pilot and owner of the restored Lockheed P2V Harpoon. Lynn Hunt, a pilot, said his sister, Adrean Clark, 43, of Santa Rosa, is believed to have been a passenger.