revision preference src: Alexander Hunter, a Washington merchant, was commissioned to plan the ceremony. merchant had the White House draped in black ribbon and ordered a curtained, upholstered black and white carriage to carry Harrison's casket. <SEP> tgt: Alexander Hunter, a Washington merchant, was commissioned to plan the ceremony. Hunter had the White House draped in black ribbon and ordered a curtained, upholstered black and white carriage to carry Harrison's casket.