Their formal military address would be "sir" (or "ma'am" if female) or "Chief".
This would only apply while they are in uniform.
Fran Walker is the wife of the now retired, third Master Chief Petty Officer of the Navy, Robert (Bob) Walker.
retired as a senior chief petty officer
abbreviate "Master Sergeant retired
Senior Chief Petty Officer followed by Master Chief Petty Officer.
Master Chief Petty Officer of the Navy Rick D. West .
Master Chief Petty Officer John-117, his name is John
A chief petty officer is a US Navy or Coast Guard non-commissioned officer of the grade E-7, E-8, or E-9. E-7: Chief Petty Officer E-8: Senior Chief Petty Officer E-9: Master Chief Petty Officer E-9 also can be a Command Master Chief (CMC) of the Master Chief Petty Officer of the Navy (MCPON) which is assigned to the highest ranking enlisted person in the United States Navy.
General Kelly. Retired Marine Officer.
The Master Chief's full rank is actually: Master Chief Petty Officer of the Navy, which is the highest rank an enlisted officer can climb to. EDIT: Sorry i forgot to make that a minor edit, sorry.
Master Chief Petty Officer Of The Navy
Master Chief Petty Officer of the Navy
Master Chief Billy C. Sanders.