I want to thank everyone for their answers and opinions on this topic. I guess i should’ve been more specific in the initial post.
Meyer MNUSHKIN was born in Bobroisk in 1903. The birth record listed his father as Meyer MNUSHKIN. His Hebrew name off his headstone is Meyer ben Meyer. In this case I can only assume the father passed before the son was born and the son was named after him.
The other instance isn’t as clear. I found the marriage record for Dawid Ptakewicz from Plonsk, Poland from 1851 on JRI Poland. It listed his age at 32 and his father as Dawid. That is the only info I have about his father.
BUZILA and KILYAN from present day Moldova
GRUBER and FEINGOLD from present day Ukraine
SEIDLER/ZEIDLER, GROSSBARD, BERLIN, WICZYNSKY, PTAKEWICZ, GOODMAN, DOBROSZKA and BROWN/BRAUN from present day Poland.
PORTNOY, GERSHON and OFSAIOF/OVSAIOVICH from present day Lithuania
MNUSHKIN and KOLVARACHIK from present day Belarus
EISENSTEIN and ZALIO from present day Romania