Prominent bloodlines identified in the seven generation pedigree of Bronx Thompson:
Old Family Red Nose strain from breeders Schiller, Hanson, Castillo, Lewis, Camarano, Amber-Lite, Lar-San and Tufftown Kennels.  The Old Family Red Nose was developed by breeders using many of the dogs imported from Ireland into the United States from 1850 to 1920.  William J. Lightner is the man usually credited with formulating a predominately red nose strain in the United States. Lighter dogs became the foundation of many of the Old Family Red Nose bloodlines bred by modern breeders today.