Are there any Fannon's from Alexandria or who have roots to Alexandria, Virginia? My family is the Fannon's and we live in Alexandria, Virginia. It is a very large family with 2nd and 3rd cousins. Michael Fannon the 1st was the one who came from Ireland and was my great-great-great grandfather. His son founded TJ Fannon & Sons in Alexandria which is still run today by his Grandson TJ Fannon. Michael Fannon the 1st came from Roscommon County Ireland and his parents names were Richard and Mary Fannon. I was looking for anyone with ties to my family. Other surnames were Dau, Knight, Smith, Andrews, and Guiffre.