Irish Ancestors, Irishtimes.com (www.irishtimes.com), archived from the original on 13 May 2016, retrieved 15 December 2010, which cited: de Bhulbh, Seán (1997), Sloinnte na hÉireann - Irish Surnames, Comharchumann Íde Naofa, for the surnames "MacCawley".
libraryireland.com
Mac Amhalghadha, Mac Amhalghaidh, Library Ireland (www.libraryireland.com), retrieved 19 December 2010, which is a transcription of: Woulfe, Patrick (1923), Irish Names and Surnames.
Cawley of West Connaught, Library Ireland (www.libraryireland.com), retrieved 15 December 2010, which is a transcription of: O'Hart, John (1892), Irish Pedigrees, vol. 1.
Ó Cadhla, Library Ireland (www.libraryireland.com), retrieved 15 December 2010, which is a transcription of: Woulfe, Patrick (1923), Irish Names and Surnames.
web.archive.org
Irish Ancestors, Irishtimes.com (www.irishtimes.com), archived from the original on 13 May 2016, retrieved 15 December 2010, which cited: de Bhulbh, Seán (1997), Sloinnte na hÉireann - Irish Surnames, Comharchumann Íde Naofa, for the surnames "MacCawley".