No, the surname Shepherd, from the English word shepherd, is of English origin.
There is no surname that is used only by Jews. There are many surnames that are used both by Jews and non-Jews. Therefore, any surname that is used by a Jewish family is Jewish, and any surname that is used by a non-Jewish family is not Jewish. So any surname can be both Jewish and non-Jewish at the same time.
Himmler is not a Jewish Surname according the Jewish Surname list of 37,000 names.
Although Salada is not a Jewish surname in its origin, any name can be a Jewish name if it is the name of a Jewish person.
Although Howell is not a stereotypically Jewish surname, any name can be a Jewish name if it is the name of a Jewish person.
When used as a Jewish person's surname, yes. When it isn't, it isn't.
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 "Jewish surnames."
yes it is a Jewish surname
No, but a Jewish person can have any surname.
There is no surname that is used only by Jews. There are many surnames that are used both by Jews and non-Jews. Therefore, any surname that is used by a Jewish family is Jewish, and any surname that is used by a non-Jewish family is not Jewish. So any surname can be both Jewish and non-Jewish at the same time.
There are almost no surnames that are uniquely Jewish. If an surname is or was used by a Jewish family, then it is Jewish. If the same surname is or was used by a non-Jewish family, then it is not Jewish. And both can be true at the same time. For example, Cohen is an Irish Catholic surname with no connection to Judaism, yet Cohen is also a Jewish surname related to claims of descent from the Jewish priesthood.
no
Not in its origin, but a Jewish person can have any surname.
The name Lewis is a surname for some Jewish families but it is also a surname for some non-Jewish families.
No.
No
The cultures of the Jewish shepherd is to protect the flock. The shepherd watches the flock and if one gets away, the shepherd leaves the flock to look for the lost.
There are almost no surnames that are uniquely Jewish. If an surname is or was used by a Jewish family, then it is Jewish. If the same surname is or was used by a non-Jewish family, then it is not Jewish. And both can be true at the same time. For example, Cohen is an Irish Catholic surname with no connection to Judaism, yet Cohen is also a Jewish surname related to claims of descent from the Jewish priesthood.