Maybe part of the problem is that certain families died out since there was no male children to carry on the family name or the older generation never talked about the family background. Or after the older generation died out in most cases the younger generation wasn't really interested at the time with asking questions about where the family came from. So when there was someone that started asking questions, by that time, sometimes it was to late to ask the older generation so in a lot of cases all they have is just the names to go on.
PAZDYK: probably derived from paździerz - the woody stems of the hemp and flax plants; now pressed togetehr to form fibre boards used in the building industry; possibly a topo nick from Pazdury, a village in Małopolska.