british english - "Mr. Smith, John" or "Smith, Mr. John" Title location in reversed name

When writing a name in reverse order (following the commonly used [Last Name], [First Name] [Middle Name(s)] format) where is the most appropriate place to put the title?

For example, is it Mr. Smith, John or Smith, Mr. John?

I'm particularly confused about this since I know that a title like "Mr." or "Ms." is appropriate for both the first and last name. For example, both "Mr. John" and "Mr. Smith" are correct.

Edit: For context, this is for a list of teacher names at a high school. It will be included in various publications such as newsletters and timetables.