The surname Markus has been used by some Jewish families, but that does not mean it is exclusively a Jewish name. Most surnames used by Jews are also used by non-Jews who have no Jewish ancestry.
There are Jews who use the surname Shepard, and there are also non-Jews who use the same surname. Most surnames used by Jews are not used only by Jews, and in that sense there are few if any truly...
Kirby is an English surname, which was originally from a place name meaning "church settlement" in Old Norse. Kirby wasn't originally a Jewish name, but some Jewish families Anglicized their name to...
The surname Leon is an element of some Spanish Jewish surnames, but it is also an element of the names of people who had no Jewish heritage.
The Kingdom of Leon, later incorporated as part of the...