Yes.
Example:
Louis Smith, Jr.
Yes, you should use a comma before "Jr." when writing a person's name to separate the person's last name from the suffix. For example, "John Smith, Jr."
Yes, a comma should be placed between a first name and "Jr." when it follows the name as it indicates a generational suffix. For example, "John Smith, Jr."
When using last name first, Jr. is placed at the end of the full name. For example, Smith, John Jr.
Yes, the Jr and Sr are descriptors that are not part of the name, so would normally be used with a comma, as: Andrew, Jr. or Andrew, Sr.
No, you do not use a comma before "Jr" when writing it after someone's name. For example, it would be written as "John Smith Jr." without a comma before Jr.
noooooooooooooooooo actually, there is a specific comma rule that pertains to this - A comma would be used both before and after the designations of "Jr." or "Sr.," as long as the sentence continues. If the designation is at the end of the sentence, then a comma is used only before it.
should I add a period and a comma after the middle name
Yes. Example: "Martin Luther King, Jr." ------------------------------------------------------------------------------------------------------------ If the name is written in the usual order (e.g., "Martin Luther King Jr."), you may or may not use the comma, depending on your personal preference. But if you're writing for a publication, it will depend on the house style of that publisher. If the name is written in the reverse order (e.g., "King, Martin Luther, Jr."), in alphabetical lists, for example, use the comma. Although Jr., Sr., etc., are sometimes regarded as parenthetic, they are part of the legal name and should not be set off with commas. Examples: John Wilson Jr. Bob Jones Sr. James Stowers III
No comma is necessary before "Jr.", "Sr.", and the like. No comma has ever been necessary before "III", "IV", etc. From the Chicago Manual of Style (http://ow.ly/gcv0):But please note that within text, if you decide to use the more traditional comma before Jr. or Sr., the function of the comma is to set off these abbreviations, so an additional comma is needed after the abbreviation if the sentence continues (as in my first sentence above).
Yes, there should be a comma after "a man by the name of" when it is used to introduce a specific person's name. For example: "A man by the name of John,..."
With NO exceptions, the comma and period should go BEFORE the closing quotation mark. Always.
A comma should be placed after "including" when it is used as an introductory phrase in a sentence. For example, "I enjoy outdoor activities, including hiking and biking."