Elf, I send you names of dogs in groups, it is maybe better to see it. You can look at pedigries.
In groups we look at father lines.
But we have groups of females too. By females is normal to look at families (not father lines). But just for interest we have females in groups (father lines ) too.
But give me time. I send you email.
If you will make some program for it, it can be good for all owners of males, if they will want watch groups.
but maybe somewhere can be problem- for example if does not exist father line, in group can be some male which have blood of same "first reproductor" in mother line too. Unfortunatelly we lost some bloods in past..... it is not "clear", but it is "solution of emergency". It is a pitty, you don´t speak czech
for better explaining.