
Sally usually a breeder that is breeding a line (with the odd notable exception) will have a kennel name or affix trgistered with the Kennel club for which use you opay a fee and an annual maintenance fee. This is a trademark for the breeders sole use when registering dogs.
All the dogs they breed will have this word as the first part of their name, and any dogs they bring into their kennel can have it added after their name. For example if your affix were 'shepley' all the pups you bred would be shepley something, e.g. 'Shepley Dawn' 'Sheply Midnight', 'Shepley Sunset' etc, and a bitch you brought in might be 'Someone elses affix at Shepley'
The names of the dogs you have given sound like those of one off litters, or commerically bred pups whose breeders actually aren't interested in having their breeding easily identifiable.
Can you give the Sires name andDams names and then their parents as some of these may be known affixes and you will be more easily be able to trace related dogs.