Regarding Cohanim and Levites .... and I have told this story before ...
When my paternal grandfather Kassemoff arrived in Leeds, UK from Rezekne, c. 1905 he went to the local council offices to arrange accommodation.
The clerk at the council office asked him what his surname was. Grandpa Joe said: Kassemoff. The clerk said: how do you spell that? Grandpa Joe hadnt been in England for very long and told the clerk that he didnt know how to spell it .... The clerk asked: are you Jewish? Joe said: Yes. So the clerk said: OK, Im writing down Cohen. So in a council office, somewhere in Leeds, Grandpa Joe Kassemoff became Cohen.
Joe and his male siblings and ancestors are all Levites. It has also been proven on y-DNA testing.
RAYKH-ZELIGMAN/RICHMAN, Stakliskes, Lithuania/Leeds
COHEN, Sakiai, Lithuania/Leeds
MAGIDOWITZ, Jurbarkas, Lithuania/Leeds
KASSIMOFF, Rezekne, Latvia/Leeds
MULVIDSON, Rezekne, Latvia/Sweden
GREENSTONE, Rezekne, Latvia/Leeds
ITMAN, Stakliskes, Lithuania/USA
KANTOR, Sakiai, Lithuania
GOLDBERG, Sakiai, Lithuania