On August 5, 2006, the first annual McDonough/McDunnah Family Reunion was held at Metropolitan Beach, Michigan.We all had a wonderful time.To see pictures of the reunion as well as other family pictures click on the link below for McDunnah Family Pictures. I have prepared a kinship list.Please check the report below to see how we are related. The name McDonough in Ireland is derived from the native Gaelic Sept MacDonnchadha of which there were a number. They were mainly located in Counties Cork and Sligo where the majority of descendants can still be found. Variants include MacDonogh, Donaghy and frequently McDonagh and now McDunnah in the United States.