Mac Griswold on “The Manor”
A trip into Shelter Island’s deep past — to say nothing of down “the slave staircase” at the island’s storied Sylvester Manor — awaits the historically curious on Saturday at 3 p.m., when Mac Griswold discusses the particulars of her new book, “The Manor: Three Centuries at a Slave Plantation on Long Island.” The talk, part of the Sag Harbor Historical Society’s annual meeting, will take place at the Annie Cooper Boyd House on Main Street in that village.