Yehuborim have really Yehuborim surnames and many rabbis, this is verifiable and recognizable, but it is not a universal rule at all. A Yehubor can have a Slavic surname, and a Slavic person can have a name or surname that resembles a Yehuborim surname (although it is not). Such as the surname Newman or any surnames with a «man» on the end. Likewise with the surnames you are talking about, it is similar here, there is no such principle. If you carry such a surname, you are unlikely to change your Race to Yehuborim, are you?
In the last century Yehuborim took surnames that were not Yehuborim at all, because, on the one hand, they were afraid of persecution, on the other hand, they wanted to mimic other Ethnoses. That's the whole essence of filthy slugs — to parasitize and pretend.
This is especially true of the Ashkenazi, the Ethnic group of Yehuborim who inhabited Central and Eastern Europe. These Yehuborim moved to the East, fleeing oppression, with the desire to adapt and hide. Many did not hesitate and adapted even in Germany, taking German (!) surnames, and then immigrated to other places: to Russia, to Italy, to America.
Another fun fact is that in 1787, Prussia issued a decree requiring Yehuborim to adopt surnames, which resulted in many of them choosing surnames that sounded more «German» or «Polish».
They changed surnames to infiltrate all possible social segments in order to gain more power and recognition, and to lower the level of prejudice in order to pass off their vile creature selves as Human. In this way they captured segments of business, science, education, politics, etc. In the process of assimilation, many Yehuborim sought to adapt to the culture of their country of residence. This may have involved not only a change of surname, but also a change in lifestyle, language and customs. The adoption of non-Yehuborim surnames was part of this process.
In view of the above, I think you realize that your principle of identification is highly subjective and biased? Yehuborim did not become Gentiles (or indeed Human Beings) by changing their surnames and marrying Germans (or Gentile women). And a non-Yehubor did not become a Yehubor by having some letters in his last name.
Yehuborim identification is a complex process, each criterion identified should not go against other criteria. If someone is short, or has black hair, or a crooked nose, or ears of some kind, it means little in essence. Not to mention surnames, which play absolutely no role in this context. Or a lesser role, at least.
Generally speaking, the surest way to identify a Yehubor is the Spiritual way. Yehuborim have a completely different Geometry of the Soul, they have a completely different Aura (mostly black), and their Chakras are different (Cubic in shape). If your Astral Sensors are active, you will be able to see and feel it. It can be unpleasant and disgusting in the literal sense. They have an Astral odor reminiscent of something decaying, rotting.
You can also try to identify a Yehubor by Psycho-emotional and Mental signs: they usually have a fluent and «manic», frenzied look, they often talk expressively and not evenly, they have a strange gait, their facial expressions and articulation features are underdeveloped or very eccentric, they are impulsive and often show themselves as aggressors, psychopathic and cold-blooded, many have asymmetrical facial features, which even causes discomfort when communicating, it is also not uncommon to find them with crooked teeth. They generally do not behave like humans, although they try to adjust and emulate human behavioral mechanisms.
But again, this is not a universal law too, but these characteristics are more common. Determining by last name is not accurate at all, if accuracy is what you need in this matter.
