It should not matter what ethnicity the person is when you are addressing them either formally or informally. Mr. and Mrs./Ms. should be used if you are writing to the person in English.
Miz.
miss
Madame Secretary
"Major" or "Ma'am".
The honorific would be The Honorable Councilman/woman John /Jane Doe, and the salutation is Dear Councilman/woman Doe.
The proper salutation for a female can vary depending on their marital status. Mrs. is used for women who are married. Miss is used for women who are single, while Ms. is used for women who are both married and single. This salutation is safer to use if one is unsure of the woman's marital status.
Dear Counselors,
What is the proper salutation for a register of wills, e.g. Honorable John White?
There is a great deal of confusion as to how to address a letter to an assembly woman in office. The proper salutation would be Dear Honorable and then their name.
The proper salutation when writing to a judge is "Dear Judge [Last Name]" or "Your Honor."
the correct salutation for two men is Messrs
Hello.