*Lowercase unless it’s a proper noun. Ex: Sarah Smith is a geology major. John Smith is an English major.
• Not necessary except in formal usage, or where someone with a common name (say, John Smith) might otherwise be confused with someone else. Be alert to cases in which a middle initial stands in for a woman’s birth name, and substitute the full name for the initial. (See also birth name and initials.)
• Spell out in text. (See also dates.) Exceptions: As part of a list or for reasons of space constraints.