How to not write bad - Ben Yagoda 2013

Capitalization
How to not write wrong

A similar strategy goes for capital letters. They’re called on, most frequently, to indicate proper nouns, which are, generally speaking, the official names of people, places, trade names, and organizations. For example: General Electric, the University of Southern California, the Atlantic Ocean, the Rolling Stones, Mars, Albany, John Glenn, Excedrin, and France. (But not my Wife, the Ocean, an Antibiotic, or the Supermarket.)

Titles and honorifics that come before a name are also capitalized; Mr., Mrs., Miss, Ms., and Dr. are abbreviated as well. But if you are merely giving a description of the person or naming his or her job—even before the name—use lowercase.

The panelists will be lawyer Mike Jones, anchorwoman Claudia Axelrod, and President Barack Obama.

After a name, even titles are lowercased:

Barack Obama is the president, Benedict is the pope, and Harvey Weill is the district attorney.

Seasons, directions, and relatives (for some reason, the three most commonly wrongly capitalized categories) are rendered in lowercase as well:

[Every Summer, my Mother and Father and I got in the car and drove West.]

Every summer, my mother and father and I got in the car and drove west.