Helen Blackwood, Baroness Dufferin and Claneboye British songwriter, composer, poet and author (1807–1867) (1807–1867) Parents Caroline Henrietta Sheridan Thomas Sheridan Children Frederick Hamilton-Temple-Blackwood, 1st Marquess of Dufferin and Ava Siblings Charles Kinnaird Sheridan Richard Brinsley Sheridan Georgiana Seymour, Duchess of Somerset Caroline Norton Francis Cynric Sheridan Thomas Berkeley Sheridan Partners Price Blackwood, 4th Baron Dufferin and Claneboye George Hay, Earl of Gifford
