William Blacker Peerage person ID=274039 (1744–1811) Parents Letitia Cary William Blacker Children Susan Blacker William Blacker Letitia Blacker Hannah Blacker Jane Blacker Edward Blacker Siblings Eliza Blacker Martha Blacker Jane Blacker Stewart Blacker Alicia Blacker Henry Blacker Barbara Blacker Lucinda Blacker Letitia Blacker George Blacker Partners Susan Jacob