abstract:Daniel Roberts (18 February 1789 – 18 February 1869) was an officer in the Royal Navy who made a series of cameo-like appearances in the lives of Lord Byron, Percy Bysshe Shelley, Edward Ellerker Williams, and Edward John Trelawny. Roberts is best known for having designed and supervised the construction of Shelley’s schooner, Don Juan, and Lord Byron’s yacht, Bolivar.