Parker, Michael (1993). Seamus Heaney: The Making of the Poet. Iowa City: University of Iowa Press, გვ. 221. ISBN0-87745-398-5. „The deaths of his mother in the autumn of 1984 and of his father in October 1986 left a colossal space, one which he has struggled to fill through poetry.“
Parker, Michael (1993). Seamus Heaney: The Making of the Poet. Iowa City: University of Iowa Press, გვ. 3. ISBN0-87745-398-5. „Mrs Heaney bore nine children, Seamus, Sheena, Ann, Hugh, Patrick, Charles, Colum, Christopher, and Dan.“
Biography of Irish Writer Seamus Heaney. www.seamusheaney.org. დაარქივებულია ორიგინალიდან — 24 February 2010. ციტატა: „Heaney was born on 13th April 1939, the eldest of nine children at the family farm called Mossbawn in the Townland of Tamniarn in Newbridge near Castledawson, Northern Ireland, ...“ ციტირების თარიღი: 20 February 2010. Archived at Wayback Engine.
Biography of Irish Writer Seamus Heaney. www.seamusheaney.org. დაარქივებულია ორიგინალიდან — 24 February 2010. ციტატა: „Heaney was born on 13th April 1939, the eldest of nine children at the family farm called Mossbawn in the Townland of Tamniarn in Newbridge near Castledawson, Northern Ireland, ...“ ციტირების თარიღი: 20 February 2010. Archived at Wayback Engine.
Biography. British Council. დაარქივებულია ორიგინალიდან — 9 October 2012. ციტირების თარიღი: 23 May 2010.
