Some articles on brodsgaard:

... collection was being amassed by Texas resident Jannettia Propps Brodsgaard who had purchased several direct descendant dogs from Duncan beginning with Rinty ... Brodsgaard bred the dogs to keep the bloodline ... Brodsgaard's granddaughter, Daphne Hereford, continued to build on the tradition and bloodline of Rin Tin Tin from 1988 to 2011 she was the first to trademark the name Rin Tin Tin ...