 Dorcas Blackwood, 1st Baroness Dufferin and Claneboye

Dorcas Blackwood, 1st Baroness Dufferin and Claneboye (born Dorcas Stevenson; 1726 – 8 February 1807) was the eldest daughter and co-heir of James Stevenson, of Killyleagh, County Down, and his wife Ann, née Price, daughter of General Nicholas Price.Her paternal grandparents were Hans Stevenson and his wife Anne, née Hamilton.