Wednesday, August 13, 2014, is tomorrow.
Note how there’s a comma after the year. If the sentence continues after you’ve written the year, you need a comma after it.
Boston, Massachusetts, is the location of the Boston Red Sox.
Same deal. If the sentence continues after the state, it needs a comma.
John Smith, Jr., is in graduate school at Boston University.
John Smith Sr. is very proud of him.
If you have the comma in between the name and the abbreviation, you need a comma after. If you don’t put a comma in between them, you don’t.
It’s weird that they have such common names, isn’t it?
What if their other cousins were Jane Doe, Jane Smith, etc.?
Jane, John, Joe, etc., probably shouldn’t be used as names in their families any more.
John Smith sends emails to his professor, Joe Doe, PhD.
Joe Doe, MD, is the cousin of Joe Doe, PhD.
Seeing a trend? Degree/title in the sentence, comma after it.