North, South, East, and West, should begin with capitals when they mean sections of the country and not points of the compass.
Example:—Chicago, the largest city of the West, is south of Lake Michigan.
Capitalize city only when part of the corporate name, New York City, Washington City.
Rule V.—Names of days and months always take a capital; but the names of seasons of the year are not commonly capitalized.
Rule VI.—Titles of office before personal names, and other titles so placed which are not mere common names of vocation, are written with capitals.
Examples:—Senator Jones, Doctor (or Dr.) Brown, Aunt Jane, Miss or Master Gray; but coachman Smith, barber Harris, etc.
Titles of dignity are also commonly capitalized when used alone, as in address, or with the definite article.
Examples:—the President, Senator, Judge, the Judge, District Attorney.
When title, with or without Christian name, precedes “de,” use lower-case “d”; this rule applies also to “la,” “di,” “von,” “van,” etc.
Examples:—Marquis de Lafayette, Di Cesnola, Prince von Moltke, Von Humboldt, Dr. la Mond, De Chaulnes, Mr. van Renssalaer.