John Blackwood (1757-1833) (1757–1833) Parents Dorcas Blackwood, 1st Baroness Dufferin and Claneboye Sir John Blackwood, 2nd Baronet Children Siblings Dorcas Blackwood Henry Blackwood Margaret Catherine Blackwood Anne Blackwood Sophia Blackwood Hans Blackwood, 3rd Baron Dufferin and Claneboye James Blackwood, 2nd Baron Dufferin and Claneboye Price Blackwood Leeson Blackwood Robert Blackwood