The series' name is taken from the nickname of the notorious Canadian Donnelly family who participated in a violent 19th Century community feud around Lucan, Ontario that ended with a home invasion massacre. Series creator, Paul Haggis, grew up in the nearby city of London, Ontario where the stories of the feud are well known, and he promised to use elements of them in the series.
The exterior shots for the Firecracker Lounge were filmed at the Shannon Pot, a bar at the corner of Jackson Ave. and Davis St. in Long Island City, Queens. The exterior shots for the Minetta Tavern were filmed at the real-life Minetta Tavern at 113 MacDougal St. in New Yorks Village area, also known as SoHo although it is North of Houston.
In early drafts, the show was originally titled "The Truth according To Joey Ice Cream."
The episode called "God Is A Comedian" was originally slated to be the 3rd episode to air, but NBC decided to make it an on line-only episode because the content was too violent and graphic for network television. It is currently viewable, only in the USA, on the official Black Donnellys website as well as through i Tunes.
Paul Haggis' production company, Blackfriars Bridge, (seen at the end of every episode) is named after a landmark in his hometown of London, Ontario.