John Blennerhassett (1812-1847) (1812–1847) Parents Rowland Blennerhassett Letitia Hurly Children Letitia Blennerhassett Siblings Millicent Agnes Blennerhassett Mary Blennerhassett Rowland Blennerhassett Richard Francis Blennerhassett Alice Blennerhassett Letitia Blennerhassett Lucy Blennerhassett Partners Annabella Yeilding