If I am writing about two people with the last name Anderson, and one uses the suffix Sr., where do I place the suffix?

Note: This post relates to content in the eighth edition of the MLA Handbook. For up-to-date guidance, see the ninth edition of the MLA Handbook.

List the full name of each person and provide the suffix after the last name of the person to whom it belongs. In MLA style, the suffix should be surrounded by commas:

William Anderson, Sr., and Augustine Anderson