alot of nuttall blood came over here several years ago,and booth and gould stuff too,but no particular strain being bred as such,most of the dogs bred here are of these bloodlines but its ,worker to worker matings,no mater what way they are bred.in fact the two main stud dogs in my area are both of unknown breeding ,but who cares,they are top class workers and are producing game working stock.so we are happy,for now at least!